The APR Catback Exhaust System personalizes your vehicle's looks, sound and performance. Beautifully hand-crafted T304-stainless-steel components adorn the system with stunning TIG-welding throughout...

The APR Oil Catch Can System traps excessive crankcase oil vapors and gunk from entering the engine. The system eliminates a possible performance robbing boost leak, while reducing carbon buildup on...

The HPFP internals must be machined to extreme tolerances and installed in a clean environment or the pump can easily fail. Dimensional tolerances on the APR HPFP are as tight as .00004" and...

The HPFP internals must be machined to extreme tolerances and installed in a clean environment or the pump can easily fail. Dimensional tolerances on the APR HPFP are as tight as .00004" and...

The factory LPFP sits in a basket submerged in the vehicle's gas tank. The pump operates off of a pulse-width modulated (PWM) signal sent from the pump's control module, which is mapped in the ECU...

The APR Oil Catch Can System replaces the failure prone factory positive crank ventilation (PCV) system and traps excessive crankcase oil vapors and gunk from entering the engine. The system...

The APR Valve Spring System is a high performance, lightweight upgrade designed to increase valve control and eradicate valve float common on many applications. APR's design specifications called for...

This fit kit is required to fit the APR CPS system to C7 (pre facelift) and B8 (Pre Facelift) vehicles. Fits Audi A6 Quattro 12-18, A7 Quattro 12-18, S4 10-16, S5 10-17​ All hoses and fittings...

Replacement supercharger belt for use with an APR Drive Pulley & OEM Crank Pulley. Fits Audi A6 Quattro 09-18, A7 Quattro 12-18, A8 Quattro 13-18, Q5 13-17, Q7 11-15, S4 10-16, S5 10-17, SQ5...

Replacement supercharger belt for use with an APR Drive Pulley & APR Crank Pulley. Fits Audi A6 Quattro 09-18, A7 Quattro 12-18, A8 Quattro 13-18, Q5 13-17, Q7 11-15, S4 10-16, S5 10-17, SQ5...

Replacement supercharger belt for use with an OEM Drive Pulley & APR Crank Pulley. Fits Audi A6 Quattro 09-18, A7 Quattro 12-18, A8 Quattro 13-18, Q5 13-17, Q7 11-15, S4 10-16, S5 10-17, SQ5...

APR's Supercharger Drive and Crank Pulley Upgrades dramatically increase horsepower and torque by increasing the rotational speed of the factory supercharger. APR's Stage II Pulley ECU Upgrade makes...