APR Roll-Control Front Stabilizer Bar End Links - Ball Joint

APR's Roll-Control Front Stabilizer Bar End Links improve handling and response through the use of replaceable and swappable ball joints, intended for street use. The end links offer a great range of adjustability in both connection geometry and height,...

APR Roll-Control Front Stabilizer Bar End Links - Spherical

APR's Roll-Control Front Stabilizer Bar End Links improve handling and response through the use of replaceable and swappable spherical bearings, intended for race use. The end links offer a great range of adjustability in both connection geometry and...

APR Valve Stem Caps

Leaving no detail untouched, we've added APR Valve Stem Caps to the lineup! Sold as a set of 4 aluminum caps, each has an APR logo engraved on the face, which some believe may add horsepower*.   Silver or Gunmetal   *HP gains are unconfirmed...

APR Exhaust Valve Remote

The APR Exhaust Valve Remote lets you override the factory exhaust valve operation to fully open the exhaust valves at the press of a button. Simply plug-and-play and press "ON" to open the valves fully. To return to the original behavior, press "OFF"...

APR Supercharger Drive Pulley for Audi 3.0T (Bolt-On Style)

*Please Note: Specific software is required to maximize output with this product. This system is only for use with bolted on pulleys. For pressed on pulleys, use part number MS100135. A new belt is required. Use part number RS100001 with a factory crank...

APR CPS Radiator Fit Kit for B8 S4 & S5 3.0T

This fit kit is required to fit the APR CPS system to C7 (pre facelift) and B8 (Pre Facelift) vehicles. Features: Adapts the system to the B8 chassis All hoses and fittings included for a painless install   This part is legal for sale or use on...

APR Supercharger Drive Pulley for Audi 3.0T (Press-On Style)

*Please Note: Specific software is required to maximize output with this product. A new belt is required. Use part number RS100003 with a factory supercharger drive pulley and part number RS100002 with an APR supercharger drive pulley* APR's Supercharger...

APR Supercharger Crank Pulley for Audi 3.0T

*Please Note: Specific software is required to maximize output with this product. A new belt is required. Use part number RS100003 with a factory supercharger drive pulley and part number RS100002 with an APR supercharger drive pulley.* APR's...

APR Ultracharger Throttle Body Upgrade for C7 A6 & A7 3.0T

*Please Note: Specific software is required to use this system. Software is included. Software compatibility must be checked before purchase. This system also requires other hardware to function properly, including: Supercharger Drive Pulley,...

APR Ultracharger Throttle Body Upgrade for B8 Q5 & SQ5 3.0T

*Please Note: Specific software is required to use this system. Software is included. Software compatibility must be checked before purchase. This system also requires other hardware to function properly, including: Supercharger Drive Pulley,...

APR Ultracharger Throttle Body Upgrade for B8 S4 & S5 3.0T

*Please Note: Specific software is required to use this system. Software is included. Software compatibility must be checked before purchase. This system also requires other hardware to function properly, including: Supercharger Drive Pulley,...

APR CPS Radiator for B8 & C7 3.0T & 4.0T

*Please Note: The B8 S4/S5 and some C7 A6/A7 require the CPS Fit Kit (MS100136). The fit kit is required when the cooler has an inlet and outlet on opposite sides. Furthermore, some B8 S4/S5 vehicles with Audi Drive Select (ADS) coolers will require...

APR Catch Can for MK6 Golf R

*Please Note: This system requires our PCV blocking boost tap (MS100030 or MS100031). This part is not designed for use with the factory engine cover.* The APR Oil Catch Can System replaces the failure prone factory positive crank ventilation (PCV)...

APR Catch Can for MK6 GLI EA888 Gen 1

*Please Note: This system requires our PCV blocking boost tap (MS100030 or MS100031). This system only fits the EA888 Gen 1 engine and does not fit the EA888 Gen 3 engines.* The APR Oil Catch Can System traps excessive crankcase oil vapors and gunk...

APR Catch Can for MK6 GTI

*Please Note: This system requires our PCV blocking boost tap (MS100030 or MS100031).* 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,...