Audi A4 S4 Base Sedan Carbon Fiber Rear Diffuser with Hand-Laid Carbon Weave (2013-2015)

Fitted to the Audi A4 S4 Base Sedan with Hand Laid Carbon Weave (2013 2015), it hides the underside of the rear bumper and adds the motorsport look the standard car lacks.

Fits: Audi A4 S4 Base Sedan with Hand Laid Carbon Weave (2013 2015)

The mounting points line up with the factory lower bumper fixings on the Audi A4 S4 Base with.

Autoclave curing means the part keeps its shape in heat – no sagging on a hot day or after a track session.

It fixes from underneath with the supplied screws and clips; removing the rear bumper is not necessary on the Audi A4 S4 Base with.

If your car has a factory tow bar, the diffuser may need trimming around the mounting bracket.

Standard output is gloss clear coat over 3K twill, but matte, satin, forged carbon and tinted clear coats (including red and blue) are all available at order time.

• Gloss, matte, satin or forged carbon finish
• 3K twill, 6K twill, plain weave or carbon-kevlar hybrid
• Coloured tinted clear coat (red, blue, yellow)
• Logo application or badge cut-outs on request

The shop floor is in Shishan, Nanhai – the composite cluster west of Guangzhou – and the same bench that runs this part also runs our OEM work for tuners and distributors.

Each part is weighed and measured against the master sample, then wrapped in foam and boxed in a double-wall carton with the hardware bagged separately.

If you are a distributor, we can ship on your documents and hold stock under your SKU rather than ours.

Rinse road salt and brake dust off regularly and wipe with a pH-neutral cleaner; a light wax keeps the clear coat glossy and stops dust bonding to the weave.

Production is 10-15 business days because the part is made after you order it, not pulled off a shelf; after that it ships with tracking and a 12-month defect warranty.

In the box: diffuser, screws, clips and a fitment card.