APR ECU UPGRADE APR ECU UPGRADE - AUDI S4 S5 B8,5 3,0 TFSI V6 Stage 1

OVERVIEW APR's ECU Upgrades are the best dollar-per-horsepower modification one can make to improve engine performance. 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 ECU Upgrades are available with various features and supported octane levels and each stage is compatible with most typical bolt-on modifications. The software is installed to the vehicle's factory ECU through the OBD-II port, resulting in a clean and headache-free install. Features: Horsepower - More horsepower throughout the whole rpm band Torque - More torque throughout the whole rpm band Program Switching - Change programs and access features with your cruise control stalk (Stage 1 Only) APR Mobile - Change programs and access features with your smart device (Stage 1 Only) Valet Mode – Neuters the vehicle, giving the driver minimal output Anti-Theft – Password protects driving the vehicle Security Lockout – Password protects program switching Fault Code Erase – Resets ECU fault codes and adaption on the fly Stages - Multiple performance levels depending on installed hardware Fuel Grades - Multiple octanes from which to choose Acceleration - Accelerate faster with more power and reduced throttle lag Brake Boosting - Left foot braking or brake boosting added Speed Limiter - Go as fast as you want with the speed limiter out of the way Rev Limiter - Increased redline for higher revving Standing Limiter - Increased standing limiter for higher revving at idle Motorsport Limiter - With the soft limiter removed, you’ll get full power right up to the hard, “bap bap bap” redline fuel cut Economy - While cruising, or driving normally, your fuel economy may benefit from our optimized calibration Direct Port Programming - Clean and easy install through the OBD II port without removing the ECU Free Updates - Get free updates for life Guarantee - 30 day money back guarantee