3D Design G8X M3 / M4 Carbon Rear Side Extension Set
The 3D Design G8X M3 / M4 Carbon Rear Side Extension Set refines the rear quarter transition of the G80 M3 and G82 M4 with a pair of precisely shaped carbon extensions that add visual continuity between the rear diffuser and side skirt areas. The result is a more complete, motorsport-inspired rear treatment that enhances the wide-body stance of the G8X M-car without requiring a full aero kit.
Constructed from 2x2 pre-preg carbon fiber with a gloss clearcoat finish, the rear side extensions fit directly to the factory rear bumper surround using existing mounting locations. The CAD-derived profiles are tailored specifically to the G8X body, ensuring a flush, integrated appearance that complements the factory carbon accents found throughout the M3 / M4.
Designed and manufactured in Japan, 3D Design components are developed with a focus on fitment precision, durability, and real-world usability. Their approach blends motorsport influence with street functionality, resulting in aerodynamic upgrades that enhance both form and function without sacrificing practicality.
Product Details
- Designed for BMW G80 / G81 M3 and G82 / G83 M4 models
- Rear side extensions mount to factory rear bumper surround using existing attachment points
- Constructed from 2x2 pre-preg carbon fiber for a premium, lightweight construction
- Gloss clearcoat finish that integrates with factory carbon trim elements
- Sold as a complete left and right set
- Includes installation hardware and instructions
- Designed and manufactured in Japan
- SKU: 3106-38012
Vehicle Applications
Notes
- Designed specifically for G8X M3 / M4 models — not compatible with standard G20 3-Series or G22 4-Series
- 3D Design is a Japanese manufacturer known for precision-engineered BMW components developed for both street and circuit use
- As the exclusive North American distributor, IND Distribution guarantees all products are genuine 3D Design Japan components