Audi S4 (C4) 1991-1994

  WA250-500 BMC Air Filter Cleaning Washing Kit To keep your BMC air filter performing at its highest capacity, be sure to keep it fresh with a BMC wash kit. Cleaning kit BMC: - Contains cleaning...

D2 Racing Big brakes, a high-performance brake system designed to take your vehicle’s stopping power to the next level! These Big Brake Kits provide the confidence you need to brake with absolute...

D2 Racing Big brakes, a high-performance brake system designed to take your vehicle’s stopping power to the next level! These Big Brake Kits provide the confidence you need to brake with absolute...

D2 Racing Big brakes, a high-performance brake system designed to take your vehicle’s stopping power to the next level! These Big Brake Kits provide the confidence you need to brake with absolute...

30-3315 AEM V3 WATER/ METHANOL INJECTION NOZZLE KIT The AEM Water/Methanol Injection Nozzle kit works with any 1/4" OD water/water injection tubing, and is typically used to add a second injector to...

  K&N 99-5050 Cleaner Product Description K&N Recharger Kit 99-5050 is designed to service your K&N oiled cotton air filter when it gets dirty. The kit comes with K&N Power Kleen air filter...

The AEM 30-2400 Designed specifically for high performance automotive applications. AEM's 30-2400 Boost Control Solenoid is specifically manufactured for automotive applications. It is designed to...

The World-famous Wideband O2 air/fuel ratio UEGO gauge features a digital LED display and sweeping LED 'needle' that changes colors as AFR changes from rich to lean. A 52mm (2-1/16") gauge housing...