FabSpeed Audi R8 V8 ExperTune Performance Software

ExperTune Performance software upgrade improves horsepower, torque, and driving characteristics by reprogramming various sensor inputs, air/fuel ratios, and boost pressure (if applicable). Achieve maximum power from the Audi R8 4.2L V8 without sacrificing driveability or reliability by optimizing the engine's performance.                                     POWER GAINS Audi R8 4.2L V8 Stock = 420 HP / 417 TQ Tuned = 441 HP / 435 TQ NOTES While a vehicle equipped with bolt-on upgrades will experience maximum gains as a result of the increased efficiency of the engine, great power gains can be made on a completely stock vehicle!   This is not a physical/shipped product.  This upgrade requires you to send us your ECU for re-programming. You will be emailed a download link with detailed instructions after adding this to your cart and checking out. You must fill out and include a copy of the ECU Information form along with your ECU upon sending it in. Please contact us if yo