Rear Diffuser for BMW M3 M4
Fits Models - M3 | M4 (2015+)
![](http://www.racingsportconcepts.com/cdn/shop/files/001-021_cbe1ff41-0cb1_{width}x.jpg?v=1674748838)
Increased Downforce
![](http://www.racingsportconcepts.com/cdn/shop/files/002-011_{width}x.jpg?v=1674748861)
Reduced Drag
![](http://www.racingsportconcepts.com/cdn/shop/files/003-025_bafd98d5-9eec_{width}x.jpg?v=1674748890)
Improved Air Flow
![](http://www.racingsportconcepts.com/cdn/shop/files/004-003_3f56bdfa-d8a9_{width}x.jpg?v=1674748999)
Laser Scanned & 3D CAD Engineered for Perfect Fitment
![](http://www.racingsportconcepts.com/cdn/shop/files/005-006_2c46c3be-6c11_{width}x.jpg?v=1674749021)
State of the Art Autoclave Curing Process
![](http://www.racingsportconcepts.com/cdn/shop/files/006-004_17738966-4e59_{width}x.jpg?v=1674749044)
Racing Sport Concepts Advanced UV Inhibiting Clear Coat Formula
![](http://www.racingsportconcepts.com/cdn/shop/files/007-022_fbee7402-6ddc_{width}x.jpg?v=1674749123)
Unlike anything else on the market the Racing Sport Concepts BMW 3-Piece Rear Diffuser will make your M3 or M4 stand out from the rest. The two side pieces feature double bonded carbon to strengthen the diffuser fins as well as provide a beautiful clear coated finish.
The central section features two more double bonded fins that are removable on the bottom side and have a central vent to allow hot air from the exhaust escape. This functional aerodynamic part not only channels the turbulence off the rear tires, but also creates a central low pressure area to reduce lift at the back of the vehicle.
Additional Notes:
- Easy installation.
- Requires no alterations to the vehicle.
- 2 year racing sport concepts warranty & product support.