Audi A4 S-Line / S4 B9 Rear Diffuser – Prepreg Dry Carbon Fiber (2020–2021) Shipping Option:Air Freight (1-2 Weeks) 16 levels of precise damping

16 levels of precise damping adjustment

By purchasing this item you are confirming your understanding that this cannot be installed unless your factory spoiler has been removed or modified

A340 Transmission dipstick set for JZ engines

100% Pre-Preg Construction - Vacuum-dried pre-impregnated carbon fiber ensures superior strength and consistency

50” (Outlet)

Audi A4 S-Line / S4 B9 Rear Diffuser – Prepreg Dry Carbon Fiber (2020–2021) Shipping Option:Air Freight (1-2 Weeks) 16 levels of precise dampingIf you're building your B9 the right way, the rear end matters just as much as the front. This Prepreg Dry Carbon Fiber Rear Diffuser is designed to give your Audi A4 S Line or S4 a sharper, more aggressive finish that completely transforms the rear profile. The 3D contoured design adds depth, dimension, and true performance inspired styling giving your build that finished, high end look it deserves. Crafted using advanced prepreg dry carbon