Direct-fit carbon fibre rear diffuser for Audi A4 B9 S Line and S4 models (2016-2018 saloon and estate). Designed exclusively for S Line and S4 bumpers - will not fit standard bumper.
Real carbon fibre, not vinyl wrap or fibreglass
Lightweight, rigid and finish-ready straight from the box
Bolt-on installation - no trimming, drilling or modification needed
Ideal for fast-road or track-day styling without compromising daily usability
Not OEM. Not a replica. Just functional, authentic carbon for the B9 you actually drive.
