Dry carbon
BMW · M4 · 14-20
BMW M4 F82/F83 Carbon Fiber Rear Diffuser (One-Piece)(14-20)
Pre-preg dry carbon, cured in the autoclave and scanned to the factory panel it replaces.
Pre-preg carbonautoclave-cured
Scanned fitmentto the factory panel
12-month warrantyevery part
Free shippingthis order qualifies
Will it fit your car?
- Fits the BMW M4 (F82 F83), 14-20.
- A direct replacement for the factory panel, scanned for exact fitment.
- Not sure it fits your build? Contact us before you order.
Form and Function
Weight you can see. Strength you can feel.
Real, structural carbon, scanned to the car and cured under pressure. See how it is made and tested.
Read Form & FunctionSpecs & install
Specs & install
One rear diffuser in pre-preg dry carbon with a UV-stable clear coat, plus the fitment hardware where the part needs it. Sent in protective packaging.
A direct replacement for the factory panel. Most parts reuse the OEM mounting points. Professional installation is recommended for structural aero. We do not modify the car.
Backed by a 12-month warranty. Free worldwide shipping on orders over $39.99 CAD, a $12.99 CAD flat rate below that. 30-day returns on unused items in original condition.
More BMW carbon
Finish the BMW
