APR

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APR - Enhancing the Driving Experience

At APR our sole mission is to engineer only the highest quality tuning solutions for Volkswagen, Audi and Porsche vehicles ensuring the enthusiast the ultimate driving experience while consistently providing the enthusiast the ultimate in customer care and support.
Ask our experts how you can get Powered by APR™ engine tuning today by calling 1 (800) 680-7921!

New Products

APR S4, S5, and SQ5 (B9/B9.5) ECU Upgrades are here!

March 27th, 2020

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We’re excited to announce our Engine Control Unit (ECU) Upgrades are now available for the Audi S4, S5, and SQ5 (B9) 3.0 TFSI engine with the Bosch MG1 ECU! Expect massive gains with up to 431-480 HP and 467-549 FT-LBS of torque on tap, depending on octane, from this simple software upgrade. Additionally APR Plus is available with 431 HP and 467 FT-LBS and comes with a factory term limit matching limited powertrain warranty!

Our new suite of MG1 ECU software comes after months of extensive research and development that is typically absent from the aftermarket. Our upgrade makes the engine more powerful and more exciting. We’ve extensively calibrated the system to work flawlessly on the track, while retaining safety routines to protect your engine in the most demanding scenarios. This was all made possible by our engineering team’s pursuit of perfection. Development vehicles were outfitted with additional sensors, including turbo shaft speed sensors, thermocouples, transducers, and more, along with our high speed direct RAM logging equipment, to feed valuable data to the team for analysis. After thousands of hours of testing and tuning we created new calibrations that are fine tuned …

APR 980cc MPI Injector Upgrade Kit

March 24th, 2020

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High horsepower configurations often require more fuel, especially on applications where ethanol is used. The APR 980cc MPI Injector Upgrade Kit includes an upgraded high-flow multiport injection (MPI) injector and harness necessary to satisfy high horsepower builds. The kit uses a compact and extended tip Bosch EV 14 injector that supports Ethanol and Methanol and flows 980cc/min at 3 bar. A high quality 2 wire harness with braided wire sheathing converts the Bosch Jetronic connector to the necessary factory style connector making this upgrade plug-and-play with an associated ECU upgrade.

This injector upgrade is only compatible with matching ECU software. On the 2.5 TFSI EA855 EVO the injector is plug-and-play with software. On the EA888 Gen 3, the injector is plug-and-play, with software, on models that include factory MPI injection. On models without factory MPI injection, more components are required. If used for methanol injection, the valves must be flushed with standard gasoline after use. Read More…

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Phone: (800) 680-7921 Local Phone: +1 (334) 502-5181 Fax: (334) 502-5180 Address: APR LLC, 4800 US HWY 280 West, Opelika, AL 36801

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Notice: Products that affect emissions and do not carry a California Air Resources Board Executive Order are not for sale in California, USA. While we try to keep everything current, APR LLC is not responsible for errors in pricing on this web site. All prices are in USD and are applicable to the United States of America only.
¹APR offers free ground shipping to the lower 48 states for purchases over $100.