Audi TT/TTS/TTRS Engine ECU Upgrade

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    Audi TT/TTS/TTRS Engine ECU Upgrade

    APR's Performance Lineup for Audi TT, TTS, and TT RS Vehicles.

    Transform your vehicle with our Engine Control Unit (ECU) Software Upgrades. We optimize the factory engine management system to take full advantage of the engine's capabilities for large leaps in horsepower and torque, along with added features to make the driving experience more exciting.