APR B9 ECU Upgrades Now Available

We’re proud to announce that APR’s ECU software is now available for the entire lineup of Audi B9 vehicles. Models with software available include the Audi B9 A4, A5, Q5, and Allroad.

APR’s ECU Upgrades are the best dollar-per-horsepower modification one can make to the 2.0T engine. The upgrades dramatically increase horsepower and torque, making for an exceptionally quicker and more exciting vehicle. This is made possible through APR’s optimization of the factory engine management system to take full advantage of the engine’s capabilities, without needing any end user adjustment. The software loads to the factory ECU through the OBD-II port, resulting in a clean and headache-free install.

For more information, please check out the product page on our webstore by clicking here.

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