Rennwerks Parts is a APR Dealer through Sprint Motorsports, and  is the recommended dealer and installer for apr in San Jose and the San Francisco bay area.

The sole mission of APR is to engineer only the highest quality ECU tuning solutions and aftermarket performance products for Audi, Porsche and Volkswagen vehicles. Their goal is insuring the enthusiast with ultimate driving experience and reliability and providing car’s owner with the ultimate in customer care and support. Ask our expert staff how you can get 
Powered by APR™ engine tuning today! Call 1-408-800-4485


APR’s ECU Upgrades are the best dollar-per-horsepower modification one can make to their Audi, Porsche, or Volkswagen. The upgrades are precisely engineered to dramatically increase your car’s horsepower and torque without compromising reliability. This makes for an exceptionally quicker and more exciting vehicle. APR optimizes the factory engine management system to take full advantage of the Audi, Porsche, and VV engine’s capabilities, without needing any end user adjustment. Once the ECU is unlocked, the APR Application program loads to the factory ECU through the OBD-II port, resulting in a clean and headache-free install. APR also offers tuning with a limited powertrain warranty, with purchase of APR Plus enhancement.

For the ultimate in performance upgrades for Audi, Porsche, and Volkswagen, we recommend purchasing APR stage I, II, and III performance packages if available. The performance packages can include APR engineered exhaust systems, intake systems, drivetrain upgrades and tuning,  and other products that are all engineered to work together for maximum performance.

Tuning upgrades for the ECU is often not enough for the power hungry soul. APR recognizes that in order to provide a complete automotive performance package for Audi, Porsche, and Volkswagen, they must engineer and build high quality parts to that can unleash the most horsepower reliably. APR offers stage kits which may include exhaust systems, intake systems, improved fuel system and injectors, better turbos or superchargers, and even engine internals that are all designed to work together with a matching ecu tune that will generate phenomenal power.  These parts may also be bought separately. The performance products from APR are designed and engineered for proper aesthetics, sound, power, proper fitment with function and style.

Ask our expert staff how you can get Powered by APR™ engine tuning today! Call 1-408-800-4485


Founded in 1997, APR is the global leader in performance aftermarket products for Volkswagen, Audi, Seat, Skoda, Porsche, and other vehicles. APR develops and manufactures hardware, ECU Tuning, calibration & data-logging tools for engine and transmission controllers, including intakes, exhaust systems, intercoolers, turbocharger systems, suspension, brake systems, wheels, and more. APR delivers ECU Tuning via a 24-hour automated global delivery system from its 80,000 square foot state of the art facility in Opelika, Alabama.

See all of the brands we carry at Rennwerks. We carry more than 50,000 products. If there is something you are looking for, and you can not find it, Please Call 1-408-800-4485 or Contact Us.