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Home /
Audi A3/S3/RS3 /
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Engine ECU Upgrade /
Gasoline ECU Upgrades /
4 Cylinder Engine ECU Upgrades

Audi A3/S3/RS3 4 Cylinder Engine ECU Upgrades

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Audi A3/S3/RS3 4 Cylinder Engine ECU Upgrades

APR's Performance Lineup for Audi A3, S3, and RS3 vehicles.

About Us

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, software, calibration & data-logging tools for engine and transmission controllers, including intakes, exhaust systems, intercoolers, turbocharger systems, suspension, brake systems, wheels, and more. APR delivers software via a 24-hour automated global delivery system from its 80,000 square foot state of the art facility in Opelika, Alabama.

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4800 HWY 280 W, Opelika, AL 36801, USA
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Copyright© 2023 by APR, LLC. All Right Reserved. Notice: Products that affect emissions, and do not carry a California Air Resources Board Executive Order, are not for sale in California, USA. Some products may not comply with local laws, and some may affect parts of the manufacturer's warranty. Some products may require additional modifications and additional maintenance. Individual results may vary depending on vehicle setup, quality of install, environmental conditions, overall vehicle health, testing equipment and more. Pricing is in USD for the US market and all pricing and information is for reference only. For specific information and questions contact an APR representative. Terms & Conditions | Privacy Policy | Warranty Information

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, software, calibration & data-logging tools for engine and transmission controllers, including intakes, exhaust systems, intercoolers, turbocharger systems, suspension, brake systems, wheels, and more. APR delivers software via a 24-hour automated global delivery system from its 80,000 square foot state of the art facility in Opelika, Alabama.

Copyright© 2024 by APR, LLC. All Right Reserved. Notice: Products that affect emissions, and do not carry a California Air Resources Board Executive Order, are not for sale in California, USA. Some products may not comply with local laws, and some may affect parts of the manufacturer's warranty. Some products may require additional modifications and additional maintenance. Individual results may vary depending on vehicle setup, quality of install, environmental conditions, overall vehicle health, testing equipment and more. Pricing is in USD for the US market and all pricing and information is for reference only. For specific information and questions contact an APR representative.

Terms & Conditions | Privacy Policy | Warranty Information