Up to 70 more horsepower for the Audi S4 (B9) with ABT power upgrade
The separate ABT Engine Control (AEC) unit provides the driver of a current Audi S4 Sedan (B9) with an extra dose of speed, increasing the standard 354 HP / 369 lb-ft up to approximately 425 horsepower and 405 lb-ft of torque. The ABT Engine Control unit is installed additionally to the cars original ECU using [...] More »
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