
Quick Answer
The Ridgeline Motorsport GT4 MK2 Rear Wing is a universal 140 cm carbon fiber rear wing designed for performance-focused street and track builds. Constructed from 2x2 pre-preg dry carbon fiber, it features an adjustable wing angle and is available with standard or optional high-mount stands. While designed as a universal application, the GT4 MK2 is especially popular on BMW E92 M3 and other E9X M3 builds.
Product Features & Specifications
- Fitment: Universal
- Wing Dimensions: 140 cm × 21 cm
- Material: 2x2 autoclaved pre-preg dry carbon fiber
- Design: GT4-inspired profile, approximately 18 cm wider and 6 cm longer than the original GTS-style wing profile
- Wing Angle: Adjustable
- Mount Options: Standard or High Mount
- Construction: Lightweight, high-rigidity dry carbon
GT4 MK2 Design and Development
The GT4 MK2 Rear Wing takes inspiration from a reengineered version of the OEM BMW GTS rear wing developed by a Dutch BMW racing team. 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 for performance-focused applications.
The increased surface area is intended to provide greater rear aerodynamic load at speed, while the adjustable wing angle allows the setup to be tuned for different vehicles and configurations. Actual aerodynamic performance will vary depending on vehicle setup, wing angle, and surrounding bodywork.
Pre-Preg Dry Carbon Fiber Construction
The current GT4 MK2 Rear Wing is constructed from 2x2 pre-preg dry carbon fiber, replacing the hand-laid wet carbon construction used on the earlier version. The upgraded construction provides a lighter, stronger, and more rigid wing structure while maintaining a premium carbon fiber weave and finish.
Popular Application: BMW E92 M3
Although the GT4 MK2 Rear Wing uses a universal design, the BMW E92 M3 is one of its most popular applications. The 140 cm GT4-style wing profile complements the proportions of the E92 chassis and is commonly used on GTS-inspired, Clubsport, and track-focused builds.
See the wing in two different E92 applications: Sean's Melbourne Red E92 M3 GT4 Clubsport Build and Kevin's Fire Orange E92 M3 GTS Tribute Build.
Because the GT4 MK2 is a universal rear wing rather than a vehicle-specific component, mounting requirements should always be confirmed for the individual vehicle before installation.
Standard vs. High-Mount Wing Stands
The GT4 MK2 Rear Wing is available with Standard or High-Mount wing stands. The standard configuration provides a lower mounting position, while the high-mount configuration raises the wing above the rear bodywork for a more aggressive motorsport-inspired setup.
For replacement or standalone mounting components, the GT4 MK2 standard and high-mount wing stands are also available separately.
Installation
Professional installation is strongly recommended to ensure proper positioning, alignment, structural reinforcement, and wing-angle adjustment. Installation requires drilling and modification of the trunk or mounting surface.
Test-fit all components and confirm the mounting locations before drilling or permanently securing the wing. Installation requirements vary depending on the vehicle, trunk configuration, mounting surface, and selected wing stands.
Refer to the GT4 MK2 Rear Wing Installation Guide for detailed guidance on bracket assembly, mounting-location measurement, trunk drilling, reinforcement inserts, wing installation, angle adjustment, and final hardware inspection.
Disclaimer View aerodynamic and motorsport-use information
Motorsport Product Disclaimer
Aerodynamic performance varies depending on vehicle speed, wing angle, ride height, suspension configuration, surrounding bodywork, and the overall aerodynamic setup. No specific downforce figure is guaranteed across different vehicle configurations.
Track and motorsport use can place increased aerodynamic and mechanical loads on the 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.