Audi RS4 4.2 FSI V8 420hp

Stock vs. Tune Maps remap

Measured values for the Audi RS4 4.2 FSI V8 420hp.

	Stock	Remap	Difference
Power	420 HP	440 HP	+20 HP
Torque	430 Nm	455 Nm	+25 Nm

From the factory the Audi RS4 with the 4.2 FSI V8 420hp engine (B7 - 2004 - 2008) delivers 420 HP and 430 Nm on petrol. With a Tune Maps remap the calibration is optimised to 440 HP and 455 Nm – that is 5% more power and 6% more torque, while staying within safe limits for engine and drivetrain. The engine is controlled by a Bosch MED9 ECU.

Measured values. Results can vary with vehicle condition, fuel quality and hardware.

Engine & ECU data