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RM ENGINEERING

RM Engineering GT4+ Canards For F8X M3/4

RM Engineering GT4+ Canards For F8X M3/4

£304.00 GBP
£304.00 GBP £304.00 GBP
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Engineered for Maximum Performance. Inspired by BMW Motorsport. Proven on Track.

The Ridgeline Motorsport GT4+ Aero Kit is our most comprehensive aerodynamic package for the BMW F8X platform.

Developed from the visual and aerodynamic foundation of the BMW F82 M4 GT4 race car, the GT4+ system evolves beyond the limitations of the original GT4 rulebook. Each component was redesigned using real-world track experience to increase aerodynamic performance while maintaining a balanced relationship between front and rear downforce.

Designed for serious track-day drivers, time attack competitors, and high-performance street builds, the complete GT4+ package combines a reinforced front lip, tunneled front splitter, GT4 canards, and a chassis-mounted rear wing into one integrated aerodynamic system.

Vehicle Fitment

Designed for compatible BMW F8X M models, including:

  • BMW F80 M3 Sedan
  • BMW F82 M4 Coupe

Please confirm your vehicle model, bumper configuration, trunk configuration, and competition-class requirements before ordering.

Track-Proven Development

The GT4+ Aero Kit was developed and tested on road-going BMW F8X vehicles equipped primarily with bolt-on modifications.

Testing results were achieved without extensive vehicle weight reduction and while using 275/35R18 200TW street-class tires.

Recorded F-Chassis Results

Super Lap Battle 2025 — Circuit of the Americas

  • Fastest BMW in class, excluding two Toyota Supras

WeatherTech Raceway Laguna Seca

  • Best recorded lap: 1:34.341

Global Time Attack Finals — Buttonwillow CW13

  • Fourth place
  • Best recorded lap: 1:50.940
  • Fastest BMW in class, excluding three Toyota Supras

Real-world testing, competition use, and continuous development remain central to every Ridgeline Motorsport aerodynamic product.

OEM GT4 1:1 Canards

The included GT4 canards replicate the geometry and positioning of the OEM BMW M4 GT4 components.

They are designed to work with the GT4+ front aero system to improve front-end aerodynamic response, particularly during medium- and high-speed driving.

Canard Features

  • OEM GT4 geometry
  • Designed to improve front-end aerodynamic balance
  • Supports increased high-speed stability
  • Integrates with the GT4+ front lip and splitter system
  • Installation hardware included