Yellow Speed Racing Rear 4 Piston Ultra Big Brake Kit - Audi S4 2004-2005 (B6) fits_1993-1998`Nissan`R33 rapid open/close with included controller

rapid open/close with included controller

Front & Rear utilize pillowball mounts which may cause some NVH

engineered to unleash the incredible sound potential of your 800+ HP super-sedan

4 lb lighter than OEM

Craftsmanship: Precision TIG welds and full mandrel bends for optimal flow

Yellow Speed Racing Rear 4 Piston Ultra Big Brake Kit - Audi S4 2004-2005 (B6) fits_1993-1998`Nissan`R33 rapid open/close with included controllerYellow Speed Racings Ultra Series Big Brake Kit is designed for road and track use. This big brake kit features optimum braking performance, attractive looks, easy installation and a cost effective price. Factory brakes are designed primarily for daily driving on most applications. If you have added additional horsepower to your vehicle, or frequently compete in motorsports such as circuit racing, drifting, time attack or rally racing, then a big