Audi A4 S-Line / S4 B9 Carbon Fibre Rear Bumper Diffuser

Transform the rear end of your Audi into a statement of purposeful aggression with this precision-engineered carbon fibre rear bumper diffuser. Designed to complement the S-Line and S4 aesthetic, this piece adds an unmistakable motorsport-inspired edge that sets your car apart from the crowd without compromise.

Hand-crafted using a genuine carbon fibre construction with a stunning 3x3 twill weave finish, this diffuser delivers the kind of visual drama that turns heads at every opportunity. The deep gloss surface catches light beautifully, adding depth and drama to the lower rear section of your vehicle in a way no OEM component ever could.

Installation is refreshingly straightforward — every fitting hardware you need is included in the package, meaning no specialist tools or costly bodywork modifications are required. Each piece is developed using CNC-precision moulds and test-fitted on real vehicles, ensuring an OEM-grade, flush fit that looks factory from day one.

Elevate your Audi's rear presence with a part that combines visual impact, quality craftsmanship, and effortless installation. Add this carbon fibre diffuser to your build today and complete the look your car deserves.

Audi A4 B9 S-Line / S4 Sedan (2017-2019)

3x3 Twill Weave Carbon Fibre with Gloss Clearcoat

MH Customs does not accept any liability for damage caused to a vehicle during installation of this product. Professional installation is recommended for all products. By purchasing this product you agree to these terms.