Dry Carbon Fiber Rear Bumper Diffuser for 2015-2019 BMW F80 M3 & F82 / F83 M4 (incl. M4 GTS & CS)
Available in stock (20)
Carbon Fiber Rear Diffuser for BMW F80 M3 & F82 / F83 M4
A carbon fiber rear bumper diffuser for the BMW F80 M3 Sedan and F82 / F83 M4 Coupe and Convertible, including the M4 GTS and M4 CS. It replaces the factory rear diffuser and mounts with the included self-tapping screws. It is made from 3x3 weave carbon fiber with a double-layer UV-protective gloss clear coat.
Fitment
- BMW M3 (F80) Sedan, 4-door: 2015-2018
- BMW M4 (F82) Coupe, 2-door: 2015-2019
- BMW M4 (F83) Convertible, 2-door: 2015-2019
- BMW M4 GTS Coupe: 2016
- BMW M4 CS Coupe: 2018-2019
- Not for: non-M 3 Series / 4 Series (F30, F32, F33, F36), the G80 M3 or G82 M4
Confirm your model and year by VIN, or compare photos of your rear bumper, before ordering.
Specifications
- Material: Carbon fiber, 3x3 weave
- Finish: Double-layer UV-protective clear coat, glossy
- Manufacturing: 3D design, CNC molding, test fitted on a real car
- Fitment type: Replaces the factory rear diffuser
- Hardware: Self-tapping screws included
Installation
Professional installation is recommended.
- Unbolt and remove the factory rear diffuser.
- Test fit the carbon fiber diffuser and check alignment with the bumper and exhaust tips.
- Secure it with the included self-tapping screws.
Care
- Wash with a pH-neutral car shampoo and a soft microfiber cloth.
- Avoid abrasive polishes and automatic brush car washes.
FAQ
Does it fit the M4 Convertible? Yes. F83 M4 Convertible 2015-2019 is listed.
Does it fit a 340i or 440i M Sport? No. M3 / M4 only.
Does it fit the M4 CS and GTS? Yes. 2016 M4 GTS and 2018-2019 M4 CS are listed.
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Stephanie L.
Ordered the BMW front bumper fog light grille and the fitment was absolutely perfect. Gloss black finish looks factory-fresh and the quality is outstanding. Installation took about 30 minutes — no drilling required. Highly recommend AlchemyRide!
Marcus R.
Fast shipping, great packaging, and the part arrived in perfect condition. The grille fits my F23 like a glove — exactly as described. Customer service was also super responsive when I had a fitment question. Will definitely order again.
David K.
I've bought aftermarket parts from many stores but AlchemyRide stands out for quality and value. The part was well-made, fit perfectly, and the price was very competitive. My BMW looks aggressive and clean — exactly what I wanted.
Jenny T.
Excellent product and super easy to install. The gloss black finish matches my M Sport bumpers perfectly. Shipping was faster than expected and the part was well-packaged. Very happy with my purchase — my car looks completely transformed!