{"title":"BMW F80 M3 \u0026 F82 M4 Rear Wings","description":"\u003cp\u003eCompare carbon fiber rear wings for BMW F80 M3 and F82 M4, from Ring Spec V2 and GT4 MK2 clubsport options to the GT4+ chassis-mounted system. Explore wing designs, mounting hardware and reinforcement accessories, and choose the setup that matches your build and installation requirements.\u003c\/p\u003e","products":[{"product_id":"gt4-mk2-wing","title":"Ridgeline Motorsport GT4 MK2 Rear Wing (Autoclaved Pre-Preg Dry Carbon Fiber)","description":"\u003cdiv class=\"rm-gt4-mk2-wing\"\u003e\n  \u003ch2\u003eGT4 MK2 Rear Wing Overview\u003c\/h2\u003e\n\n  \u003cp\u003eThe \u003cstrong\u003eRidgeline Motorsport GT4 MK2 Rear Wing\u003c\/strong\u003e is a universal 140 × 21 cm carbon fiber rear wing developed for performance-focused street and track builds. It combines a larger GT4-inspired wing profile with 2x2 pre-preg dry carbon fiber construction, an adjustable wing angle and Standard or optional High-Mount stands.\u003c\/p\u003e\n\n  \u003cp\u003eAlthough designed as a universal application, the GT4 MK2 is especially popular on BMW E90, E92 and E93 M3 builds.\u003c\/p\u003e\n\n  \u003ch2\u003eProduct Features\u003c\/h2\u003e\n\n  \u003cul\u003e\n    \u003cli\u003eUniversal 140 × 21 cm rear wing\u003c\/li\u003e\n    \u003cli\u003eExtended GT4-inspired wing profile\u003c\/li\u003e\n    \u003cli\u003e2x2 pre-preg autoclaved dry carbon fiber\u003c\/li\u003e\n    \u003cli\u003eAdjustable wing-angle configuration\u003c\/li\u003e\n    \u003cli\u003eStandard and optional High-Mount stands\u003c\/li\u003e\n  \u003c\/ul\u003e\n\n  \u003ch2\u003eStandard vs. High-Mount Wing Stands\u003c\/h2\u003e\n\n  \u003cdiv class=\"rm-gt4-mk2-wing__table-wrap\"\u003e\n    \u003ctable class=\"rm-gt4-mk2-wing__table rm-gt4-mk2-wing__table--mounts\"\u003e\n      \u003ccolgroup\u003e\n        \u003ccol style=\"width: 28%;\"\u003e\n        \u003ccol style=\"width: 72%;\"\u003e\n      \u003c\/colgroup\u003e\n\n      \u003cthead\u003e\n        \u003ctr\u003e\n          \u003cth scope=\"col\"\u003eMount Option\u003c\/th\u003e\n          \u003cth scope=\"col\"\u003ePosition\u003c\/th\u003e\n        \u003c\/tr\u003e\n      \u003c\/thead\u003e\n\n      \u003ctbody\u003e\n        \u003ctr\u003e\n          \u003ctd\u003e\u003cstrong\u003eStandard\u003c\/strong\u003e\u003c\/td\u003e\n          \u003ctd\u003eLower mounting position for a more restrained rear-wing configuration\u003c\/td\u003e\n        \u003c\/tr\u003e\n\n        \u003ctr\u003e\n          \u003ctd\u003e\u003cstrong\u003eHigh Mount\u003c\/strong\u003e\u003c\/td\u003e\n          \u003ctd\u003eElevated mounting position for a more motorsport-focused configuration\u003c\/td\u003e\n        \u003c\/tr\u003e\n      \u003c\/tbody\u003e\n    \u003c\/table\u003e\n  \u003c\/div\u003e\n\n  \u003cp\u003eReplacement and standalone mounting components are available through the \u003ca href=\"https:\/\/ridgelinemotorsport.com\/products\/rm-engineering-gt4-wing-motorsport-high-mount\"\u003eGT4 Wing Standard Mount and GT4 Wing High Mount\u003c\/a\u003e product page.\u003c\/p\u003e\n\n  \u003ch2\u003eGT4 MK2 Design and Development\u003c\/h2\u003e\n\n  \u003cp\u003eThe GT4 MK2 takes inspiration from a reengineered version of the OEM BMW GTS rear wing developed for motorsport use. Compared with the original GTS-style wing profile, the GT4 MK2 is approximately 18 cm wider and 6 cm longer, creating a larger aerodynamic surface area.\u003c\/p\u003e\n\n  \u003cp\u003eThe increased surface area is intended to provide greater rear aerodynamic loading at speed, while the adjustable wing angle allows the configuration to be adapted to different vehicles and overall aerodynamic setups.\u003c\/p\u003e\n\n  \u003ch2\u003ePre-Preg Dry Carbon Fiber Construction\u003c\/h2\u003e\n\n  \u003cp\u003eThe current GT4 MK2 Rear Wing is manufactured from 2x2 pre-preg carbon fiber and cured in an autoclave. This construction replaces the hand-laid wet carbon used on the earlier version, creating a lighter, stronger and more rigid wing structure with a consistent carbon fiber finish.\u003c\/p\u003e\n\n  \u003ch2\u003eUniversal Fitment\u003c\/h2\u003e\n\n  \u003cp\u003eThe GT4 MK2 is a universal trunk-mounted rear wing rather than a vehicle-specific bolt-on product. It may be installed on BMW and other performance vehicles with suitable trunk dimensions, mounting clearance and structural support.\u003c\/p\u003e\n\n  \u003cp\u003eVehicle-specific drilling templates are not included. Confirm the wing dimensions, stand spacing, trunk construction and intended mounting position before ordering.\u003c\/p\u003e\n\n  \u003ch2\u003ePopular BMW E92 M3 Application\u003c\/h2\u003e\n\n  \u003cp\u003eThe BMW E92 M3 is one of the most popular applications for the GT4 MK2. Its 140 cm GT4-style profile complements the proportions of the E92 chassis and is commonly used on GTS-inspired, Clubsport and track-focused builds.\u003c\/p\u003e\n\n  \u003cp\u003eSee the wing in two different E92 M3 applications:\u003c\/p\u003e\n\n  \u003cul class=\"rm-gt4-mk2-wing__builds\"\u003e\n    \u003cli\u003e\n      \u003ca href=\"https:\/\/ridgelinemotorsport.com\/blogs\/motorsport-journal\/seans-melbourne-red-e92-m3-gt4-clubsport-build\"\u003eSean’s Melbourne Red E92 M3 GT4 Clubsport Build\u003c\/a\u003e\n      — Features the GT4 MK2 Rear Wing as part of a complete track-focused aero and chassis setup.\n    \u003c\/li\u003e\n\n    \u003cli\u003e\n      \u003ca href=\"https:\/\/ridgelinemotorsport.com\/blogs\/e92-m3\/e92-m3-fire-orange-clubsport-build\"\u003eKevin’s Fire Orange E92 M3 GTS Tribute Build\u003c\/a\u003e\n      — Combines the GT4 MK2 Rear Wing with a modern interpretation of the BMW E92 M3 GTS.\n    \u003c\/li\u003e\n  \u003c\/ul\u003e\n\n  \u003ch2\u003eSpecifications\u003c\/h2\u003e\n\n  \u003cdiv class=\"rm-gt4-mk2-wing__table-wrap\"\u003e\n    \u003ctable class=\"rm-gt4-mk2-wing__table rm-gt4-mk2-wing__table--specs\"\u003e\n      \u003ccolgroup\u003e\n        \u003ccol style=\"width: 30%;\"\u003e\n        \u003ccol style=\"width: 70%;\"\u003e\n      \u003c\/colgroup\u003e\n\n      \u003cthead\u003e\n        \u003ctr\u003e\n          \u003cth scope=\"col\"\u003eSpecification\u003c\/th\u003e\n          \u003cth scope=\"col\"\u003eDetail\u003c\/th\u003e\n        \u003c\/tr\u003e\n      \u003c\/thead\u003e\n\n      \u003ctbody\u003e\n        \u003ctr\u003e\n          \u003ctd\u003eWing dimensions\u003c\/td\u003e\n          \u003ctd\u003e140 × 21 cm\u003c\/td\u003e\n        \u003c\/tr\u003e\n\n        \u003ctr\u003e\n          \u003ctd\u003eConstruction\u003c\/td\u003e\n          \u003ctd\u003e2x2 pre-preg autoclaved dry carbon fiber wing and endplates\u003c\/td\u003e\n        \u003c\/tr\u003e\n\n        \u003ctr\u003e\n          \u003ctd\u003eWing angle\u003c\/td\u003e\n          \u003ctd\u003eAdjustable\u003c\/td\u003e\n        \u003c\/tr\u003e\n\n        \u003ctr\u003e\n          \u003ctd\u003eMount options\u003c\/td\u003e\n          \u003ctd\u003eStandard or optional High Mount\u003c\/td\u003e\n        \u003c\/tr\u003e\n\n        \u003ctr\u003e\n          \u003ctd\u003eInstallation\u003c\/td\u003e\n          \u003ctd\u003eTrunk drilling, reinforcement and professional installation required\u003c\/td\u003e\n        \u003c\/tr\u003e\n      \u003c\/tbody\u003e\n    \u003c\/table\u003e\n  \u003c\/div\u003e\n\n  \u003cp\u003eLooking for a narrower rear wing? Compare the \u003ca href=\"https:\/\/ridgelinemotorsport.com\/products\/ridgeline-motorsport-m235ir-style-wing\"\u003e122 cm M235iR Carbon Fiber Rear Wing\u003c\/a\u003e or the \u003ca href=\"https:\/\/ridgelinemotorsport.com\/products\/ridgeline-motorsport-ring-spec-wing\"\u003e130 cm Ring Spec Wing V2\u003c\/a\u003e.\u003c\/p\u003e\n\n  \u003ch2\u003eInstallation\u003c\/h2\u003e\n\n  \u003cp\u003eProfessional installation is required to achieve proper positioning, alignment, structural reinforcement and wing-angle adjustment. Installation requires measuring and drilling the trunk or mounting surface for the selected wing stands.\u003c\/p\u003e\n\n  \u003cp\u003eTest-fit the wing, stands and reinforcement components before drilling or permanently securing any part. Installation requirements vary depending on the vehicle, trunk construction, mounting surface and selected stand configuration.\u003c\/p\u003e\n\n  \u003cp\u003eA compatible \u003ca href=\"https:\/\/ridgelinemotorsport.com\/products\/rm-wing-mount-trunk-reinforcement-sleeve-kit\"\u003eRear Wing Trunk Reinforcement Sleeve Kit\u003c\/a\u003e is available to connect the upper and lower trunk structures around suitable mounting locations.\u003c\/p\u003e\n\n  \u003cp\u003eReview the \u003ca href=\"https:\/\/ridgelinemotorsport.com\/pages\/installation-guide\"\u003eGT4 MK2 Rear Wing Installation Guide\u003c\/a\u003e before installation.\u003c\/p\u003e\n\n  \u003cp\u003eFor vehicles used on track, inspect the rear wing, stands, hardware and surrounding mounting areas regularly as part of routine vehicle preparation and maintenance.\u003c\/p\u003e\n\n  \u003cdetails class=\"rm-product-disclaimer\"\u003e\n    \u003csummary\u003e\n      \u003cspan class=\"rm-product-disclaimer__title\"\u003eMotorsport Product Disclaimer\u003c\/span\u003e\n      \u003cspan class=\"rm-product-disclaimer__hint\"\u003eView aerodynamic performance, mounting and inspection information\u003c\/span\u003e\n    \u003c\/summary\u003e\n\n    \u003cdiv class=\"rm-product-disclaimer__content\"\u003e\n      \u003cp\u003eAerodynamic performance varies depending on vehicle speed, wing angle, ride height, suspension configuration, surrounding bodywork and the vehicle’s overall aerodynamic setup. No specific downforce figure is guaranteed across different vehicle configurations.\u003c\/p\u003e\n\n      \u003cp\u003eTrack and motorsport use can place increased aerodynamic and mechanical loads on the rear wing, mounting stands, trunk and surrounding vehicle structure. The installer is responsible for confirming that all mounting points are properly reinforced and suitable for the intended application.\u003c\/p\u003e\n\n      \u003cp\u003eTrack-driven vehicles should have the rear wing, stands, hardware and surrounding mounting areas inspected regularly.\u003c\/p\u003e\n    \u003c\/div\u003e\n  \u003c\/details\u003e\n\u003c\/div\u003e\n\n\u003cstyle\u003e\n  .rm-gt4-mk2-wing {\n    width: 100%;\n  }\n\n  .rm-gt4-mk2-wing h2 {\n    margin: 34px 0 14px;\n  }\n\n  .rm-gt4-mk2-wing h2:first-child {\n    margin-top: 0;\n  }\n\n  .rm-gt4-mk2-wing p {\n    margin: 0 0 16px;\n  }\n\n  .rm-gt4-mk2-wing ul {\n    margin: 0 0 24px;\n    padding-left: 22px;\n  }\n\n  .rm-gt4-mk2-wing li {\n    margin-bottom: 7px;\n  }\n\n  .rm-gt4-mk2-wing__builds li {\n    margin-bottom: 11px;\n  }\n\n  .rm-gt4-mk2-wing a {\n    color: inherit;\n    text-decoration: underline;\n    text-underline-offset: 3px;\n  }\n\n  .rm-gt4-mk2-wing__table-wrap {\n    width: 100%;\n    margin: 18px 0 20px;\n    overflow-x: auto;\n    border: 1px solid rgba(var(--color-foreground), 0.18);\n  }\n\n  .rm-gt4-mk2-wing__table {\n    width: 100%;\n    border-collapse: collapse;\n    table-layout: fixed !important;\n  }\n\n  .rm-gt4-mk2-wing__table th,\n  .rm-gt4-mk2-wing__table td {\n    padding: 15px 18px;\n    border-right: 1px solid rgba(var(--color-foreground), 0.15);\n    border-bottom: 1px solid rgba(var(--color-foreground), 0.15);\n    text-align: left;\n    vertical-align: top;\n  }\n\n  .rm-gt4-mk2-wing__table th {\n    background: rgba(var(--color-foreground), 0.05);\n    font-weight: 600;\n  }\n\n  .rm-gt4-mk2-wing__table th:last-child,\n  .rm-gt4-mk2-wing__table td:last-child {\n    border-right: 0;\n  }\n\n  .rm-gt4-mk2-wing__table tbody tr:last-child td {\n    border-bottom: 0;\n  }\n\n  .rm-gt4-mk2-wing__table--mounts th:first-child,\n  .rm-gt4-mk2-wing__table--mounts td:first-child {\n    width: 28% !important;\n  }\n\n  .rm-gt4-mk2-wing__table--mounts th:last-child,\n  .rm-gt4-mk2-wing__table--mounts td:last-child {\n    width: 72% !important;\n  }\n\n  .rm-gt4-mk2-wing__table--specs th:first-child,\n  .rm-gt4-mk2-wing__table--specs td:first-child {\n    width: 30% !important;\n  }\n\n  .rm-gt4-mk2-wing__table--specs th:last-child,\n  .rm-gt4-mk2-wing__table--specs td:last-child {\n    width: 70% !important;\n  }\n\n  .rm-product-disclaimer {\n    margin: 30px 0 0;\n    border: 1px solid rgba(var(--color-foreground), 0.18);\n  }\n\n  .rm-product-disclaimer summary {\n    position: relative;\n    display: block;\n    padding: 18px 56px 18px 20px;\n    background: rgba(var(--color-foreground), 0.04);\n    cursor: pointer;\n    list-style: none;\n  }\n\n  .rm-product-disclaimer summary::-webkit-details-marker {\n    display: none;\n  }\n\n  .rm-product-disclaimer__title {\n    display: block;\n    font-size: 17px;\n    font-weight: 600;\n    line-height: 1.4;\n  }\n\n  .rm-product-disclaimer__hint {\n    display: block;\n    margin-top: 4px;\n    font-size: 14px;\n    line-height: 1.45;\n    color: rgba(var(--color-foreground), 0.7);\n  }\n\n  .rm-product-disclaimer summary::after {\n    content: \"\";\n    position: absolute;\n    top: 50%;\n    right: 22px;\n    width: 8px;\n    height: 8px;\n    border-right: 1.5px solid currentColor;\n    border-bottom: 1.5px solid currentColor;\n    transform: translateY(-65%) rotate(45deg);\n    transition: transform 0.2s ease;\n  }\n\n  .rm-product-disclaimer[open] summary::after {\n    transform: translateY(-35%) rotate(225deg);\n  }\n\n  .rm-product-disclaimer__content {\n    padding: 18px 20px 6px;\n  }\n\n  .rm-product-disclaimer__content p {\n    margin: 0 0 14px;\n  }\n\n  @media screen and (max-width: 749px) {\n    .rm-gt4-mk2-wing h2 {\n      margin-top: 28px;\n    }\n\n    .rm-gt4-mk2-wing__table-wrap {\n      margin: 16px 0 18px;\n    }\n\n    .rm-gt4-mk2-wing__table th,\n    .rm-gt4-mk2-wing__table td {\n      padding: 13px 14px;\n    }\n\n    .rm-product-disclaimer summary {\n      padding: 16px 48px 16px 16px;\n    }\n\n    .rm-product-disclaimer summary::after {\n      right: 18px;\n    }\n\n    .rm-product-disclaimer__content {\n      padding: 16px 16px 4px;\n    }\n  }\n\u003c\/style\u003e\n\u003cp\u003ePlanning an F80 M3 or F82 M4 build? \u003ca href=\"\/collections\/f8x-m3-m4-rear-wings\"\u003eCompare BMW F80 M3 and F82 M4 rear wings\u003c\/a\u003e, including GT4 MK2, Ring Spec V2 and GT4+ options. Confirm the selected wing’s mounting and reinforcement requirements before ordering.\u003c\/p\u003e","brand":"RM CLUBSPORT","offers":[{"title":"Standard \/ Limited Time Free ($199 MSRP)","offer_id":47600401908000,"sku":"DRMWINGGLSD08-L","price":999.0,"currency_code":"USD","in_stock":true},{"title":"Add High Mount \/ Limited Time Free ($199 MSRP)","offer_id":48906670801184,"sku":"DRMWINGGLSD08-H","price":1099.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0727\/9339\/1392\/files\/ridgeline-motorsport-gt4-mk2-dry-carbon-rear-wing.jpg?v=1787205580"},{"product_id":"rm-engineering-gt4-wing-motorsport-high-mount","title":"RM Engineering Adjustable Wing Mounts for M235iR \/ M240iR, GT4 MK2 \u0026 Ring Spec Rear Wings","description":"\u003cdiv class=\"rm-wing-mount-description\"\u003e\n\u003ch2\u003eRear Wing Mount Overview\u003c\/h2\u003e\n\u003cp\u003eThe \u003cstrong\u003eRM Engineering Adjustable Rear Wing Mounts\u003c\/strong\u003e are sold as a pair of hollow 6061-T6 aluminum wing stands for compatible Ridgeline Motorsport rear wings. Five configurations are available across the GT4 MK2, Ring Spec and M235iR \/ M240iR wing platforms.\u003c\/p\u003e\n\u003cp\u003eThese mounts are sold separately from the rear wing. Select the compatible wing family first, then choose the preferred mounting position or height.\u003c\/p\u003e\n\u003cdiv class=\"rm-mount-selector-note\"\u003e\n\u003cstrong\u003eSelect by rear-wing model:\u003c\/strong\u003e GT4 MK2 uses the Standard or High Mount options. M235iR \/ M240iR and Ring Spec wings use the Street Spec, GT4 Spec or M235iR Spec options. These two mounting systems are not interchangeable.\u003c\/div\u003e\n\u003ch2\u003eMount Options and Compatibility\u003c\/h2\u003e\n\u003cdiv class=\"rm-mount-table-wrap\"\u003e\n\u003ctable class=\"rm-mount-table\"\u003e\n\u003cthead\u003e\n\u003ctr\u003e\n\u003cth scope=\"col\"\u003eCompatible Rear Wing\u003c\/th\u003e\n\u003cth scope=\"col\"\u003eSelect This Option\u003c\/th\u003e\n\u003cth scope=\"col\"\u003ePosition \/ Height\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003ca href=\"https:\/\/ridgelinemotorsport.com\/products\/gt4-mk2-wing\"\u003eGT4 MK2 Rear Wing\u003c\/a\u003e\u003c\/td\u003e\n\u003ctd\u003eGT4 MK2 — Standard Mount\u003c\/td\u003e\n\u003ctd\u003eLower position\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003ca href=\"https:\/\/ridgelinemotorsport.com\/products\/gt4-mk2-wing\"\u003eGT4 MK2 Rear Wing\u003c\/a\u003e\u003c\/td\u003e\n\u003ctd\u003eGT4 MK2 — High Mount\u003c\/td\u003e\n\u003ctd\u003eElevated position\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\n\u003ca href=\"https:\/\/ridgelinemotorsport.com\/products\/ridgeline-motorsport-m235ir-style-wing\"\u003eM235iR \/ M240iR Rear Wing\u003c\/a\u003e \u003cbr\u003e\u003ca href=\"https:\/\/ridgelinemotorsport.com\/products\/ridgeline-motorsport-ring-spec-wing\"\u003eRing Spec Rear Wing\u003c\/a\u003e\n\u003c\/td\u003e\n\u003ctd\u003eM235iR \/ M240iR \/ Ring Spec — Street Spec\u003c\/td\u003e\n\u003ctd\u003eApproximately 16 cm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\n\u003ca href=\"https:\/\/ridgelinemotorsport.com\/products\/ridgeline-motorsport-m235ir-style-wing\"\u003eM235iR \/ M240iR Rear Wing\u003c\/a\u003e \u003cbr\u003e\u003ca href=\"https:\/\/ridgelinemotorsport.com\/products\/ridgeline-motorsport-ring-spec-wing\"\u003eRing Spec Rear Wing\u003c\/a\u003e\n\u003c\/td\u003e\n\u003ctd\u003eM235iR \/ M240iR \/ Ring Spec — GT4 Spec\u003c\/td\u003e\n\u003ctd\u003eApproximately 21 cm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\n\u003ca href=\"https:\/\/ridgelinemotorsport.com\/products\/ridgeline-motorsport-m235ir-style-wing\"\u003eM235iR \/ M240iR Rear Wing\u003c\/a\u003e \u003cbr\u003e\u003ca href=\"https:\/\/ridgelinemotorsport.com\/products\/ridgeline-motorsport-ring-spec-wing\"\u003eRing Spec Rear Wing\u003c\/a\u003e\n\u003c\/td\u003e\n\u003ctd\u003eM235iR \/ M240iR \/ Ring Spec — M235iR Spec\u003c\/td\u003e\n\u003ctd\u003eApproximately 25 cm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/div\u003e\n\u003cp class=\"rm-fitment-warning\"\u003e\u003cstrong\u003eImportant:\u003c\/strong\u003e Confirm the exact Ridgeline Motorsport rear wing before ordering. Similar-looking wings may use different airfoil curvature, mounting interfaces and hardware spacing. Fitment with third-party or unidentified rear wings is not confirmed.\u003c\/p\u003e\n\u003ch2\u003eMotorsport Mount Design\u003c\/h2\u003e\n\u003cp\u003eThe taller configurations reference the elevated wing positioning used on BMW F82 and G82 M4 GT4 race cars. Raising the wing may place it in cleaner airflow, although actual aerodynamic performance depends on the wing profile, angle and complete vehicle setup.\u003c\/p\u003e\n\u003cp\u003eEach mount was developed through original CAD design and 3D-printed prototyping around the curvature and mounting interface of its compatible Ridgeline Motorsport wing. Hollow 6061-T6 aluminum construction balances reduced weight with strength and rigidity.\u003c\/p\u003e\n\u003ch2\u003eProduct Features\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003eFive wing-specific mount configurations\u003c\/li\u003e\n\u003cli\u003eCompatible options for GT4 MK2, Ring Spec and M235iR \/ M240iR rear wings\u003c\/li\u003e\n\u003cli\u003eStandard, high-mount and three height configurations\u003c\/li\u003e\n\u003cli\u003eAdjustable wing-angle positions\u003c\/li\u003e\n\u003cli\u003eOriginal CAD-developed geometry\u003c\/li\u003e\n\u003cli\u003eHollow 6061-T6 aluminum construction\u003c\/li\u003e\n\u003cli\u003eSold as a pair of wing mounts\u003c\/li\u003e\n\u003cli\u003eProfessional installation recommended\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eInstallation Requirements\u003c\/h2\u003e\n\u003cp\u003eProfessional installation is recommended. Test-fit both mounts and confirm the rear-wing profile, mounting-hole alignment and desired angle before securing the assembly.\u003c\/p\u003e\n\u003cp\u003eVerify that the vehicle-side mounting surface is properly reinforced and follow the appropriate torque requirements for the installation hardware. Inspect the mounts, rear wing and hardware regularly, particularly after track use, high-speed driving or an impact.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cstyle\u003e\n  .rm-wing-mount-description {\n    width: 100%;\n  }\n\n  .rm-wing-mount-description h2 {\n    margin: 34px 0 16px;\n  }\n\n  .rm-wing-mount-description h2:first-child {\n    margin-top: 0;\n  }\n\n  .rm-wing-mount-description p {\n    margin: 0 0 16px;\n  }\n\n  .rm-wing-mount-description ul {\n    margin: 0 0 24px;\n    padding-left: 22px;\n  }\n\n  .rm-wing-mount-description li {\n    margin-bottom: 7px;\n  }\n\n  .rm-wing-mount-description a {\n    text-decoration: underline;\n    text-underline-offset: 2px;\n  }\n\n  .rm-mount-selector-note {\n    margin: 22px 0 30px;\n    padding: 16px 18px;\n    border-left: 4px solid rgb(var(--color-foreground));\n    background: rgba(var(--color-foreground), 0.055);\n    line-height: 1.6;\n  }\n\n  .rm-mount-table-wrap {\n    width: 100%;\n    margin: 22px 0 24px;\n  }\n\n  .rm-mount-table {\n    width: 100%;\n    border-collapse: collapse;\n    border: 1px solid rgba(var(--color-foreground), 0.22);\n  }\n\n  .rm-mount-table th,\n  .rm-mount-table td {\n    padding: 15px 16px;\n    border: 1px solid rgba(var(--color-foreground), 0.18);\n    text-align: left;\n    vertical-align: middle;\n  }\n\n  .rm-mount-table th {\n    background: rgba(var(--color-foreground), 0.055);\n    font-weight: 600;\n  }\n\n  .rm-mount-table th:first-child,\n  .rm-mount-table td:first-child {\n    width: 27%;\n  }\n\n  .rm-mount-table th:nth-child(2),\n  .rm-mount-table td:nth-child(2) {\n    width: 48%;\n  }\n\n  .rm-mount-table th:last-child,\n  .rm-mount-table td:last-child {\n    width: 25%;\n  }\n\n  .rm-fitment-warning {\n    margin-top: 18px;\n  }\n\n  @media screen and (max-width: 749px) {\n    .rm-wing-mount-description h2 {\n      margin: 28px 0 14px;\n    }\n\n    .rm-mount-selector-note {\n      margin: 18px 0 26px;\n      padding: 14px 15px;\n    }\n\n    .rm-mount-table {\n      border: 0;\n    }\n\n    .rm-mount-table thead {\n      position: absolute;\n      width: 1px;\n      height: 1px;\n      padding: 0;\n      margin: -1px;\n      overflow: hidden;\n      clip: rect(0, 0, 0, 0);\n      white-space: nowrap;\n      border: 0;\n    }\n\n    .rm-mount-table,\n    .rm-mount-table tbody,\n    .rm-mount-table tr,\n    .rm-mount-table td {\n      display: block;\n      width: 100%;\n    }\n\n    .rm-mount-table tr {\n      margin-bottom: 16px;\n      border: 1px solid rgba(var(--color-foreground), 0.2);\n      background: rgb(var(--color-background));\n    }\n\n    .rm-mount-table td {\n      display: grid;\n      grid-template-columns: 40% minmax(0, 60%);\n      gap: 12px;\n      width: 100% !important;\n      padding: 12px 14px;\n      border: 0;\n      border-bottom: 1px solid rgba(var(--color-foreground), 0.12);\n    }\n\n    .rm-mount-table td:last-child {\n      border-bottom: 0;\n    }\n\n    .rm-mount-table td::before {\n      content: attr(data-label);\n      font-weight: 600;\n    }\n  }\n\u003c\/style\u003e","brand":"RM CLUBSPORT","offers":[{"title":"GT4 MK2 — Standard Mount","offer_id":48971901534496,"sku":"RMSTDGT4D08-L","price":199.0,"currency_code":"USD","in_stock":true},{"title":"GT4 MK2 — High Mount","offer_id":51286710354208,"sku":"RMSTDGT4D08-H","price":199.0,"currency_code":"USD","in_stock":true},{"title":"M235iR \/ M240iR \/ Ring Spec — Street Spec (16 cm)","offer_id":51286710386976,"sku":"RMSTDRS130-L","price":199.0,"currency_code":"USD","in_stock":true},{"title":"M235iR \/ M240iR \/ Ring Spec — GT4 Spec (21 cm)","offer_id":51286710419744,"sku":"RMSTDRS130-H","price":199.0,"currency_code":"USD","in_stock":true},{"title":"M235iR \/ M240iR \/ Ring Spec — M235iR Spec (25 cm)","offer_id":51286710452512,"sku":"RMSTD235IR130-O","price":199.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0727\/9339\/1392\/files\/gt4-mk2-adjustable-rear-wing-mount.jpg?v=1788500053"},{"product_id":"ridgeline-motorsport-ring-spec-wing","title":"Ridgeline Motorsport Ring Spec Wing V2 Pre-Preg Dry Carbon Fiber Rear Wing","description":"\u003cdiv class=\"rm-ring-spec-wing\"\u003e\n  \u003ch2\u003eRing Spec Wing V2 Overview\u003c\/h2\u003e\n\n  \u003cp\u003eThe \u003cstrong\u003eRidgeline Motorsport Ring Spec Wing V2\u003c\/strong\u003e is a universal 130 × 22 cm pre-preg dry carbon rear wing inspired by the BMW M235i Racing and M240i Racing rear wing. It retains the original racing-wing foil profile and mounting-point configuration while increasing the span from approximately 122 cm to 130 cm.\u003c\/p\u003e\n\n  \u003cp\u003eChoose between 16 cm Street Spec and 21 cm GT4 Spec mounts. A taller 25 cm 235iR Spec mount is available as an optional upgrade.\u003c\/p\u003e\n\n  \u003ch2\u003eProduct Features\u003c\/h2\u003e\n\n  \u003cul\u003e\n    \u003cli\u003e130 × 22 cm rear wing dimensions\u003c\/li\u003e\n    \u003cli\u003eBMW M235i Racing and M240i Racing-inspired foil profile\u003c\/li\u003e\n    \u003cli\u003e2x2 pre-preg carbon fiber with autoclave construction\u003c\/li\u003e\n    \u003cli\u003eStreet Spec, GT4 Spec and optional 235iR Spec mount heights\u003c\/li\u003e\n    \u003cli\u003eAdjustable wing-angle configuration\u003c\/li\u003e\n  \u003c\/ul\u003e\n\n  \u003ch2\u003eMount Options\u003c\/h2\u003e\n\n  \u003cdiv class=\"rm-ring-spec-wing__table-wrap\"\u003e\n    \u003ctable class=\"rm-ring-spec-wing__table rm-ring-spec-wing__table--mounts\"\u003e\n      \u003ccolgroup\u003e\n        \u003ccol style=\"width: 24%;\"\u003e\n        \u003ccol style=\"width: 15%;\"\u003e\n        \u003ccol style=\"width: 61%;\"\u003e\n      \u003c\/colgroup\u003e\n\n      \u003cthead\u003e\n        \u003ctr\u003e\n          \u003cth scope=\"col\"\u003eMount Option\u003c\/th\u003e\n          \u003cth scope=\"col\"\u003eHeight\u003c\/th\u003e\n          \u003cth scope=\"col\"\u003ePosition\u003c\/th\u003e\n        \u003c\/tr\u003e\n      \u003c\/thead\u003e\n\n      \u003ctbody\u003e\n        \u003ctr\u003e\n          \u003ctd\u003e\u003cstrong\u003eStreet Spec\u003c\/strong\u003e\u003c\/td\u003e\n          \u003ctd\u003e16 cm\u003c\/td\u003e\n          \u003ctd\u003eLowest-profile option for street and dual-purpose builds\u003c\/td\u003e\n        \u003c\/tr\u003e\n\n        \u003ctr\u003e\n          \u003ctd\u003e\u003cstrong\u003eGT4 Spec\u003c\/strong\u003e\u003c\/td\u003e\n          \u003ctd\u003e21 cm\u003c\/td\u003e\n          \u003ctd\u003eHigher position for a more track-focused configuration\u003c\/td\u003e\n        \u003c\/tr\u003e\n\n        \u003ctr\u003e\n          \u003ctd\u003e\u003cstrong\u003e235iR Spec\u003c\/strong\u003e\u003c\/td\u003e\n          \u003ctd\u003e25 cm\u003c\/td\u003e\n          \u003ctd\u003eTallest configuration, inspired by the BMW M235i Racing and M240i Racing setup\u003c\/td\u003e\n        \u003c\/tr\u003e\n      \u003c\/tbody\u003e\n    \u003c\/table\u003e\n  \u003c\/div\u003e\n\n  \u003cp\u003eThe 235iR Spec 25 cm configuration is available as an optional upgrade through the \u003ca href=\"https:\/\/ridgelinemotorsport.com\/products\/rm-engineering-gt4-wing-motorsport-high-mount\"\u003eRM Engineering Adjustable Rear Wing Mounts\u003c\/a\u003e.\u003c\/p\u003e\n\n  \u003ch2\u003eBMW Racing-Inspired Design\u003c\/h2\u003e\n\n  \u003cp\u003eThe Ring Spec Wing V2 builds on the foil profile and mounting-point configuration of the BMW M235i Racing and M240i Racing rear wing.\u003c\/p\u003e\n\n  \u003cp\u003eIts 2x2 pre-preg carbon fiber components are cured in an autoclave to create a lightweight, rigid structure designed to maintain its profile under aerodynamic loads.\u003c\/p\u003e\n\n  \u003ch2\u003eUniversal Fitment\u003c\/h2\u003e\n\n  \u003cp\u003eThe Ring Spec Wing V2 is a universal trunk-mounted rear wing rather than a vehicle-specific bolt-on product. It may be installed on BMW and other performance vehicles with suitable trunk dimensions, mounting clearance and structural support.\u003c\/p\u003e\n\n  \u003cp\u003eVehicle-specific drilling templates are not included. Confirm the wing dimensions, mount spacing, trunk construction and intended mounting position before ordering.\u003c\/p\u003e\n\n  \u003ch2\u003eFeatured Ring Spec Wing Builds\u003c\/h2\u003e\n\n  \u003cp\u003eSee how the Ring Spec Wing V2 is configured across different BMW street and track-focused builds:\u003c\/p\u003e\n\n  \u003cul class=\"rm-ring-spec-wing__builds\"\u003e\n    \u003cli\u003e\n      \u003ca href=\"https:\/\/ridgelinemotorsport.com\/blogs\/motorsport-journal\/the-perfect-balance-aaries-f87-m2-competition-clubsport-build\"\u003eAarie’s F87 M2 Competition Clubsport Build\u003c\/a\u003e\n      — Features the Ring Spec Wing V2 with the 25 cm 235iR Spec high-mount configuration.\n    \u003c\/li\u003e\n\n    \u003cli\u003e\n      \u003ca href=\"https:\/\/ridgelinemotorsport.com\/blogs\/motorsport-journal\/richmonds-f87-m2-competition-clubsport-build\"\u003eRichmond’s F87 M2 Competition Clubsport Build\u003c\/a\u003e\n      — Uses the 21 cm GT4 Spec mounts as part of a street and track-focused setup.\n    \u003c\/li\u003e\n\n    \u003cli\u003e\n      \u003ca href=\"https:\/\/ridgelinemotorsport.com\/blogs\/motorsport-journal\/rm-is-the-no-1-u-s-aero-brand-used-at-the-nurburgring-nordschleife\"\u003eRing Spec Wing Builds at the Nürburgring Nordschleife\u003c\/a\u003e\n      — Documents Ridgeline-equipped BMW builds using the Ring Spec Wing at the Nordschleife.\n    \u003c\/li\u003e\n  \u003c\/ul\u003e\n\n  \u003ch2\u003eSpecifications\u003c\/h2\u003e\n\n  \u003cdiv class=\"rm-ring-spec-wing__table-wrap\"\u003e\n    \u003ctable class=\"rm-ring-spec-wing__table rm-ring-spec-wing__table--specs\"\u003e\n      \u003ccolgroup\u003e\n        \u003ccol style=\"width: 30%;\"\u003e\n        \u003ccol style=\"width: 70%;\"\u003e\n      \u003c\/colgroup\u003e\n\n      \u003cthead\u003e\n        \u003ctr\u003e\n          \u003cth scope=\"col\"\u003eSpecification\u003c\/th\u003e\n          \u003cth scope=\"col\"\u003eDetail\u003c\/th\u003e\n        \u003c\/tr\u003e\n      \u003c\/thead\u003e\n\n      \u003ctbody\u003e\n        \u003ctr\u003e\n          \u003ctd\u003eWing dimensions\u003c\/td\u003e\n          \u003ctd\u003e130 × 22 cm\u003c\/td\u003e\n        \u003c\/tr\u003e\n\n        \u003ctr\u003e\n          \u003ctd\u003eConstruction\u003c\/td\u003e\n          \u003ctd\u003e2x2 pre-preg autoclaved dry carbon fiber wing and endplates\u003c\/td\u003e\n        \u003c\/tr\u003e\n\n        \u003ctr\u003e\n          \u003ctd\u003eWing angle\u003c\/td\u003e\n          \u003ctd\u003eAdjustable\u003c\/td\u003e\n        \u003c\/tr\u003e\n\n        \u003ctr\u003e\n          \u003ctd\u003eInstallation\u003c\/td\u003e\n          \u003ctd\u003eTrunk drilling and professional installation required\u003c\/td\u003e\n        \u003c\/tr\u003e\n      \u003c\/tbody\u003e\n    \u003c\/table\u003e\n  \u003c\/div\u003e\n\n  \u003cp\u003eLooking for a different rear wing width? Compare the \u003ca href=\"https:\/\/ridgelinemotorsport.com\/products\/ridgeline-motorsport-m235ir-style-wing\"\u003e122 cm M235iR Carbon Fiber Rear Wing\u003c\/a\u003e or the \u003ca href=\"https:\/\/ridgelinemotorsport.com\/products\/gt4-mk2-wing\"\u003e140 cm GT4 MK2 Pre-Preg Carbon Fiber Rear Wing\u003c\/a\u003e.\u003c\/p\u003e\n\n  \u003ch2\u003eInstallation\u003c\/h2\u003e\n\n  \u003cp\u003eProfessional installation is required to achieve proper alignment, secure mounting and consistent wing-angle adjustment. The vehicle’s trunk or mounting surface must be measured and drilled for the selected mounting configuration.\u003c\/p\u003e\n\n  \u003cp\u003eTest-fit the wing, mounts and reinforcement components before drilling or permanently securing any part. Trunk construction, internal clearance and reinforcement requirements may vary between vehicles and aftermarket trunk lids.\u003c\/p\u003e\n\n  \u003cp\u003eA compatible \u003ca href=\"https:\/\/ridgelinemotorsport.com\/products\/rm-wing-mount-trunk-reinforcement-sleeve-kit\"\u003eRear Wing Trunk Reinforcement Sleeve Kit\u003c\/a\u003e is available to connect the upper and lower trunk structures around suitable mounting locations.\u003c\/p\u003e\n\n  \u003cp\u003eReview the \u003ca href=\"https:\/\/ridgelinemotorsport.com\/pages\/installation-guide\"\u003eRidgeline Motorsport Installation Guides\u003c\/a\u003e before installation.\u003c\/p\u003e\n\n  \u003cp\u003eFor vehicles used on track, inspect the wing mounts, hardware and surrounding mounting areas regularly as part of routine vehicle preparation and maintenance.\u003c\/p\u003e\n\n  \u003cdetails class=\"rm-product-disclaimer\"\u003e\n    \u003csummary\u003e\n      \u003cspan class=\"rm-product-disclaimer__title\"\u003eAerodynamic Product Disclaimer\u003c\/span\u003e\n      \u003cspan class=\"rm-product-disclaimer__hint\"\u003eView aerodynamic performance and inspection information\u003c\/span\u003e\n    \u003c\/summary\u003e\n\n    \u003cdiv class=\"rm-product-disclaimer__content\"\u003e\n      \u003cp\u003eAerodynamic performance varies with wing height, angle of attack, vehicle speed, ride height, suspension setup and the vehicle’s overall aerodynamic configuration.\u003c\/p\u003e\n\n      \u003cp\u003eTrack-driven vehicles should have all wing mounts, hardware and surrounding mounting areas inspected regularly.\u003c\/p\u003e\n    \u003c\/div\u003e\n  \u003c\/details\u003e\n\u003c\/div\u003e\n\n\u003cstyle\u003e\n  .rm-ring-spec-wing {\n    width: 100%;\n  }\n\n  .rm-ring-spec-wing h2 {\n    margin: 34px 0 14px;\n  }\n\n  .rm-ring-spec-wing h2:first-child {\n    margin-top: 0;\n  }\n\n  .rm-ring-spec-wing p {\n    margin: 0 0 16px;\n  }\n\n  .rm-ring-spec-wing ul {\n    margin: 0 0 24px;\n    padding-left: 22px;\n  }\n\n  .rm-ring-spec-wing li {\n    margin-bottom: 7px;\n  }\n\n  .rm-ring-spec-wing__builds li {\n    margin-bottom: 11px;\n  }\n\n  .rm-ring-spec-wing a {\n    color: inherit;\n    text-decoration: underline;\n    text-underline-offset: 3px;\n  }\n\n  .rm-ring-spec-wing__table-wrap {\n    width: 100%;\n    margin: 18px 0 20px;\n    overflow-x: auto;\n    border: 1px solid rgba(var(--color-foreground), 0.18);\n  }\n\n  .rm-ring-spec-wing__table {\n    width: 100%;\n    border-collapse: collapse;\n    table-layout: fixed !important;\n  }\n\n  .rm-ring-spec-wing__table th,\n  .rm-ring-spec-wing__table td {\n    padding: 15px 18px;\n    border-right: 1px solid rgba(var(--color-foreground), 0.15);\n    border-bottom: 1px solid rgba(var(--color-foreground), 0.15);\n    text-align: left;\n    vertical-align: top;\n  }\n\n  .rm-ring-spec-wing__table th {\n    background: rgba(var(--color-foreground), 0.05);\n    font-weight: 600;\n  }\n\n  .rm-ring-spec-wing__table th:last-child,\n  .rm-ring-spec-wing__table td:last-child {\n    border-right: 0;\n  }\n\n  .rm-ring-spec-wing__table tbody tr:last-child td {\n    border-bottom: 0;\n  }\n\n  .rm-ring-spec-wing__table--mounts th:nth-child(1),\n  .rm-ring-spec-wing__table--mounts td:nth-child(1) {\n    width: 24% !important;\n  }\n\n  .rm-ring-spec-wing__table--mounts th:nth-child(2),\n  .rm-ring-spec-wing__table--mounts td:nth-child(2) {\n    width: 15% !important;\n  }\n\n  .rm-ring-spec-wing__table--mounts th:nth-child(3),\n  .rm-ring-spec-wing__table--mounts td:nth-child(3) {\n    width: 61% !important;\n  }\n\n  .rm-ring-spec-wing__table--specs th:first-child,\n  .rm-ring-spec-wing__table--specs td:first-child {\n    width: 30% !important;\n  }\n\n  .rm-ring-spec-wing__table--specs th:last-child,\n  .rm-ring-spec-wing__table--specs td:last-child {\n    width: 70% !important;\n  }\n\n  .rm-product-disclaimer {\n    margin: 30px 0 0;\n    border: 1px solid rgba(var(--color-foreground), 0.18);\n  }\n\n  .rm-product-disclaimer summary {\n    position: relative;\n    display: block;\n    padding: 18px 56px 18px 20px;\n    background: rgba(var(--color-foreground), 0.04);\n    cursor: pointer;\n    list-style: none;\n  }\n\n  .rm-product-disclaimer summary::-webkit-details-marker {\n    display: none;\n  }\n\n  .rm-product-disclaimer__title {\n    display: block;\n    font-size: 17px;\n    font-weight: 600;\n    line-height: 1.4;\n  }\n\n  .rm-product-disclaimer__hint {\n    display: block;\n    margin-top: 4px;\n    font-size: 14px;\n    line-height: 1.45;\n    color: rgba(var(--color-foreground), 0.7);\n  }\n\n  .rm-product-disclaimer summary::after {\n    content: \"\";\n    position: absolute;\n    top: 50%;\n    right: 22px;\n    width: 8px;\n    height: 8px;\n    border-right: 1.5px solid currentColor;\n    border-bottom: 1.5px solid currentColor;\n    transform: translateY(-65%) rotate(45deg);\n    transition: transform 0.2s ease;\n  }\n\n  .rm-product-disclaimer[open] summary::after {\n    transform: translateY(-35%) rotate(225deg);\n  }\n\n  .rm-product-disclaimer__content {\n    padding: 18px 20px 6px;\n  }\n\n  .rm-product-disclaimer__content p {\n    margin: 0 0 14px;\n  }\n\n  @media screen and (max-width: 749px) {\n    .rm-ring-spec-wing h2 {\n      margin-top: 28px;\n    }\n\n    .rm-ring-spec-wing__table-wrap {\n      margin: 16px 0 18px;\n    }\n\n    .rm-ring-spec-wing__table--mounts {\n      min-width: 650px;\n    }\n\n    .rm-ring-spec-wing__table th,\n    .rm-ring-spec-wing__table td {\n      padding: 13px 14px;\n    }\n\n    .rm-product-disclaimer summary {\n      padding: 16px 48px 16px 16px;\n    }\n\n    .rm-product-disclaimer summary::after {\n      right: 18px;\n    }\n\n    .rm-product-disclaimer__content {\n      padding: 16px 16px 4px;\n    }\n  }\n\u003c\/style\u003e\n\u003cp\u003eChoosing a wing for your BMW F8X? Explore our \u003ca href=\"\/collections\/f8x-m3-m4-rear-wings\"\u003eF82 M4 and F80 M3 carbon fiber rear wing options\u003c\/a\u003e to compare Ring Spec V2, GT4 MK2 and the GT4+ chassis-mounted system. Mounting and reinforcement requirements vary by setup.\u003c\/p\u003e","brand":"RM CLUBSPORT","offers":[{"title":"Street Spec \/ Limited Time Free ($199 MSRP)","offer_id":49081311428896,"sku":"DRMWINGGLSRS130-L","price":999.0,"currency_code":"USD","in_stock":true},{"title":"GT4 Spec \/ Limited Time Free ($199 MSRP)","offer_id":49081311461664,"sku":"DRMWINGGLSRS130-H","price":999.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0727\/9339\/1392\/files\/bmw-ring-spec-wing-v2-dry-carbon-rear-wing.jpg?v=1787294571"},{"product_id":"rm-engineering-gt4-wing-for-f8x-m3-4","title":"RM Engineering GT4+ Pre-Preg Dry Carbon Fiber Chassis Mounted Wing For BMW F8X M3 \/ M4","description":"\u003ch2\u003eGT4+ Rear Wing Overview\u003c\/h2\u003e\n\u003cp\u003eThe \u003cstrong\u003eRM Engineering GT4+ Rear Wing\u003c\/strong\u003e is a 1600 mm chassis-mounted rear wing developed specifically for the BMW F80 M3 and F82 M4. It combines a pre-preg carbon fiber mainplane and endplates with vehicle-specific uprights, trunk mounting bases and a reinforced support structure.\u003c\/p\u003e\n\u003ch2\u003e1600 mm Chassis-Mounted Design\u003c\/h2\u003e\n\u003cp\u003eThe 1600 mm mainplane is larger than the OEM BMW M4 GT4 wing and was developed beyond GT4 homologation constraints to provide greater aerodynamic surface area.\u003c\/p\u003e\n\u003cp\u003eThe reinforced mounting system transfers rear-wing load into the vehicle structure rather than relying only on the outer trunk skin. It was developed as the rear component of the GT4+ aero system, working with the \u003ca href=\"https:\/\/ridgelinemotorsport.com\/products\/rm-engineering-gt4-splitter-kit-for-f8x-m3-4\"\u003eBMW F8X GT4+ Front Splitter Kit\u003c\/a\u003e and \u003ca href=\"https:\/\/ridgelinemotorsport.com\/products\/rm-engineering-gt4-canards-for-f8x-m3-4\"\u003eGT4+ Carbon Fiber Canards\u003c\/a\u003e as part of a coordinated front-to-rear configuration.\u003c\/p\u003e\n\u003cp\u003eVehicle balance will vary according to wing position, front aero configuration, suspension setup and ride height.\u003c\/p\u003e\n\u003ch3\u003eProduct Features\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e1600 mm GT4+ rear wing mainplane\u003c\/li\u003e\n\u003cli\u003ePre-preg carbon fiber mainplane and GT4 flat endplates\u003c\/li\u003e\n\u003cli\u003eReinforced chassis-mounted support structure\u003c\/li\u003e\n\u003cli\u003eVehicle-specific F80 M3 and F82 M4 mounting components\u003c\/li\u003e\n\u003cli\u003eLarger aerodynamic surface area than the OEM M4 GT4 wing\u003c\/li\u003e\n\u003cli\u003eComplete installation hardware included\u003c\/li\u003e\n\u003cli\u003eProfessional installation required\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch2\u003eVehicle Fitment\u003c\/h2\u003e\n\u003cp\u003eSelect the configuration that matches your vehicle:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eBMW F80 M3 Sedan\u003c\/li\u003e\n\u003cli\u003eBMW F82 M4 Coupe\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eThe F80 M3 and F82 M4 use different vehicle-specific mounting bases. Confirm the correct chassis option before ordering.\u003c\/p\u003e\n\u003cp\u003eThis rear wing is not listed for the BMW F83 M4 Convertible. Fitment with aftermarket trunk lids, previously modified mounting areas or nonstandard rear body structures is not confirmed.\u003c\/p\u003e\n\u003cp\u003eBrowse the complete \u003ca href=\"https:\/\/ridgelinemotorsport.com\/collections\/f8x-m3-m4?utm_source=chatgpt.com\"\u003eBMW F80 M3 and F82 M4 carbon fiber aero collection\u003c\/a\u003e.\u003c\/p\u003e\n\n\u003ch2\u003eInstallation\u003c\/h2\u003e\n\u003cp\u003eProfessional installation is required. Installation involves positioning and aligning the rear wing, drilling the trunk and installing the reinforced support structure and vehicle-specific trunk mounting bases. Cutting is not required.\u003c\/p\u003e\n\u003cp\u003eInspect the mounting areas and surrounding vehicle structure before installation. Previous accident damage, repairs, corrosion, trunk replacement or existing drilled holes may affect alignment and structural support.\u003c\/p\u003e\n\u003cp\u003eAll drilled mounting points must be properly sealed to help prevent water ingress. Review the \u003ca href=\"https:\/\/ridgelinemotorsport.com\/pages\/installation-guide\"\u003eRidgeline Motorsport Installation Guides\u003c\/a\u003e before installation.\u003c\/p\u003e\n\u003cp\u003eStill comparing rear aero setups? Browse \u003ca href=\"\/collections\/f8x-m3-m4-rear-wings\"\u003erear wings for the BMW F8X M3\/M4\u003c\/a\u003e to compare the GT4+ chassis-mounted system with GT4 MK2 and Ring Spec V2 alternatives.\u003c\/p\u003e","brand":"RM ENGINEERING RACE","offers":[{"title":"F80 M3","offer_id":51743567806752,"sku":"DRMGT4PLSWINGF80160","price":1799.0,"currency_code":"USD","in_stock":true},{"title":"F82 M4","offer_id":51743568068896,"sku":"DRMGT4PLSWINGF82160","price":1799.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0727\/9339\/1392\/files\/bmw-f80-f82-gt4-plus-1600mm-chassis-mounted-rear-wing-kit.png?v=1788501180"},{"product_id":"rm-wing-mount-trunk-reinforcement-sleeve-kit","title":"RM Engineering Trunk Reinforcement Sleeve Kit for GT4 MK2, Ring Spec \u0026 M235iR \/ M240iR Rear Wings","description":"\u003cdiv class=\"rm-sleeve-kit\"\u003e\n  \u003ch2\u003eTrunk Reinforcement Kit Overview\u003c\/h2\u003e\n\n  \u003cp\u003eThe \u003cstrong\u003eRM Engineering Trunk Reinforcement Sleeve Kit\u003c\/strong\u003e strengthens the trunk mounting points used by compatible GT4 MK2, Ring Spec and M235iR \/ M240iR rear wings.\u003c\/p\u003e\n\n  \u003cp\u003eThe kit includes four precision-machined stainless steel M6 reinforcement sleeves and four installation bolts. Professional installation, trunk drilling and permanent sleeve attachment are required.\u003c\/p\u003e\n\n  \u003ch2\u003eHow the Reinforcement Sleeves Work\u003c\/h2\u003e\n\n  \u003cp\u003eEach sleeve connects the upper and lower trunk structures at the rear wing mounting location. This distributes load beyond the outer trunk skin and creates a more stable mounting point for the wing uprights.\u003c\/p\u003e\n\n  \u003ch2\u003eCompatible Rear Wings\u003c\/h2\u003e\n\n  \u003cdiv class=\"rm-sleeve-kit__table-wrap\"\u003e\n    \u003ctable class=\"rm-sleeve-kit__table\"\u003e\n      \u003cthead\u003e\n        \u003ctr\u003e\n          \u003cth scope=\"col\"\u003eRear Wing System\u003c\/th\u003e\n          \u003cth scope=\"col\"\u003eCompatible Product\u003c\/th\u003e\n        \u003c\/tr\u003e\n      \u003c\/thead\u003e\n\n      \u003ctbody\u003e\n        \u003ctr\u003e\n          \u003ctd\u003eGT4 MK2\u003c\/td\u003e\n          \u003ctd\u003e\n            \u003ca href=\"https:\/\/ridgelinemotorsport.com\/products\/gt4-mk2-wing\"\u003e\n              GT4 MK2 Pre-Preg Carbon Fiber Rear Wing\n            \u003c\/a\u003e\n          \u003c\/td\u003e\n        \u003c\/tr\u003e\n\n        \u003ctr\u003e\n          \u003ctd\u003eRing Spec\u003c\/td\u003e\n          \u003ctd\u003e\n            \u003ca href=\"https:\/\/ridgelinemotorsport.com\/products\/ridgeline-motorsport-ring-spec-wing\"\u003e\n              Ring Spec Wing V2\n            \u003c\/a\u003e\n          \u003c\/td\u003e\n        \u003c\/tr\u003e\n\n        \u003ctr\u003e\n          \u003ctd\u003eM235iR \/ M240iR\u003c\/td\u003e\n          \u003ctd\u003e\n            \u003ca href=\"https:\/\/ridgelinemotorsport.com\/products\/ridgeline-motorsport-m235ir-style-wing\"\u003e\n              M235iR \/ M240iR Carbon Fiber Rear Wing\n            \u003c\/a\u003e\n          \u003c\/td\u003e\n        \u003c\/tr\u003e\n      \u003c\/tbody\u003e\n    \u003c\/table\u003e\n  \u003c\/div\u003e\n\n  \u003cp\u003eThe kit may also work with rear wings using compatible BMW GTS-style mounting geometry. Compatibility depends on the wing mounts, hole spacing, trunk construction and installation method. Confirm all dimensions before drilling. Fitment with third-party rear wings is not guaranteed.\u003c\/p\u003e\n\n  \u003cp\u003eCompatible replacement and alternative-height stands are available through the \u003ca href=\"https:\/\/ridgelinemotorsport.com\/products\/rm-engineering-gt4-wing-motorsport-high-mount\"\u003eRM Engineering Adjustable Rear Wing Mounts\u003c\/a\u003e.\u003c\/p\u003e\n\n  \u003ch2\u003eProduct Features\u003c\/h2\u003e\n\n  \u003cul\u003e\n    \u003cli\u003eFour stainless steel M6 reinforcement sleeves\u003c\/li\u003e\n    \u003cli\u003eFour installation bolts included\u003c\/li\u003e\n    \u003cli\u003eConnects the upper and lower trunk structures\u003c\/li\u003e\n    \u003cli\u003eHelps distribute load around the mounting holes\u003c\/li\u003e\n    \u003cli\u003eSuitable for properly prepared metal, composite or carbon fiber trunk lids\u003c\/li\u003e\n    \u003cli\u003eProfessional installation required\u003c\/li\u003e\n  \u003c\/ul\u003e\n\n  \u003ch2\u003eInstallation\u003c\/h2\u003e\n\n  \u003cp\u003eProfessional installation is required. Installation involves measuring, drilling, aligning and permanently securing the sleeves within the trunk structure.\u003c\/p\u003e\n\n  \u003cp\u003eFor a metal trunk lid, welding is recommended for maximum rigidity. For a composite or carbon fiber trunk lid, use a high-strength structural panel adhesive suitable for bonding metal to the applicable trunk material.\u003c\/p\u003e\n\n  \u003cp\u003eTest-fit every sleeve before welding or applying adhesive. Hole sizing, alignment and contact with the internal trunk structure must be confirmed before permanent installation. Trunk construction and internal clearance may vary between vehicles and aftermarket trunk lids.\u003c\/p\u003e\n\n  \u003cp\u003eReview the \u003ca href=\"https:\/\/ridgelinemotorsport.com\/pages\/installation-guide\"\u003eRidgeline Motorsport Installation Guides\u003c\/a\u003e before installation.\u003c\/p\u003e\n\u003c\/div\u003e\n\n\u003cstyle\u003e\n  .rm-sleeve-kit {\n    width: 100%;\n  }\n\n  .rm-sleeve-kit h2 {\n    margin: 34px 0 14px;\n  }\n\n  .rm-sleeve-kit h2:first-child {\n    margin-top: 0;\n  }\n\n  .rm-sleeve-kit p {\n    margin: 0 0 16px;\n  }\n\n  .rm-sleeve-kit ul {\n    margin: 0 0 24px;\n    padding-left: 22px;\n  }\n\n  .rm-sleeve-kit li {\n    margin-bottom: 7px;\n  }\n\n  .rm-sleeve-kit__table-wrap {\n    width: 100%;\n    margin: 18px 0 20px;\n    overflow-x: auto;\n    border: 1px solid rgba(var(--color-foreground), 0.18);\n  }\n\n  .rm-sleeve-kit__table {\n    width: 100%;\n    min-width: 580px;\n    border-collapse: collapse;\n    table-layout: fixed;\n  }\n\n  .rm-sleeve-kit__table th,\n  .rm-sleeve-kit__table td {\n    padding: 15px 18px;\n    border-right: 1px solid rgba(var(--color-foreground), 0.15);\n    border-bottom: 1px solid rgba(var(--color-foreground), 0.15);\n    text-align: left;\n    vertical-align: top;\n  }\n\n  .rm-sleeve-kit__table th:first-child,\n  .rm-sleeve-kit__table td:first-child {\n    width: 32%;\n  }\n\n  .rm-sleeve-kit__table th:last-child,\n  .rm-sleeve-kit__table td:last-child {\n    border-right: 0;\n  }\n\n  .rm-sleeve-kit__table tbody tr:last-child td {\n    border-bottom: 0;\n  }\n\n  .rm-sleeve-kit__table th {\n    background: rgba(var(--color-foreground), 0.05);\n    font-weight: 600;\n  }\n\n  .rm-sleeve-kit__table a {\n    color: inherit;\n    text-decoration: underline;\n    text-underline-offset: 3px;\n  }\n\n  @media screen and (max-width: 749px) {\n    .rm-sleeve-kit h2 {\n      margin-top: 28px;\n    }\n\n    .rm-sleeve-kit__table-wrap {\n      margin: 16px 0 18px;\n    }\n\n    .rm-sleeve-kit__table th,\n    .rm-sleeve-kit__table td {\n      padding: 13px 14px;\n    }\n  }\n\u003c\/style\u003e","brand":"RM CLUBSPORT","offers":[{"title":"Stainless steel","offer_id":52051760021792,"sku":"RMRK130D08C05C06","price":129.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0727\/9339\/1392\/files\/bmw-rear-wing-trunk-reinforcement-sleeve-kit.png?v=1788498798"}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0727\/9339\/1392\/collections\/IMG-0036_bf6f1f52-bf32-475f-b178-558461aafa65.jpg?v=1792785602","url":"https:\/\/ridgelinemotorsport.com\/collections\/f8x-m3-m4-rear-wings.oembed","provider":"Ridgeline Motorsport","version":"1.0","type":"link"}