The Audi R8 4.2 FSI 430hp (2007 - 2015) produces 430bhp and 430Nm in standard form. Our Stage 1 ECU tuning file raises output to 440bhp and 455Nm, a gain of 10bhp and 25Nm, with no hardware modifications required. The file is delivered through the ByteFLASH portal and is ready to write to the vehicle.