Audi B10 S4 / A4 S-Line Carbon Fiber Rear Diffuser – CMST Style

Upgrade your Audi’s rear profile with this premium CMST-style carbon fiber rear diffuser, designed specifically for Audi B10 S4 and A4 S-Line models.

Crafted from high-quality real carbon fiber, this diffuser enhances aerodynamics while delivering an aggressive, sporty OEM+ look.

✔ Direct fitment for B10 S4 / A4 S-Line

✔ Lightweight & durable carbon fiber construction

✔ Gloss finish for a premium appearance

✔ Perfect upgrade for a more aggressive rear end