FabSpeed McLaren 570S / 570GT / 540C ExperTune Performance Software

ExperTune Performance software upgrade improves horsepower, torque, and driving characteristics of the McLaren 570 / 540 by reprogramming various sensor inputs, air/fuel ratios, and boost pressure. Achieve maximum power (~76 whp & 86 ft-lbs) from the 3.8L Twin Turbo V8 without sacrificing driveability or reliability by optimizing the engine's performance. Greatly enhances the power and dynamic performance and driveability of this wonderful vehicle. Maps are available for completely stock cars, or for cars equipped with Sport Cats, Cat Bypass Pipes, Exhausts, upgraded turbos, and more. You wouldn't believe all the power that's waiting to be unlocked in your 570S / 570GT / 540C. We've had ample time with a 570S on our in-house Dynojet to unlock extra power on both stock vehicles and optimize performance with Fabspeed exhaust components.  Once we receive your ECU, our tuner bench flashes it with the upgraded ExperTune map and we return it to you for easy re-installation; no modificati