Fabspeed Mercedes-Benz AMG GT 4.0L V8 Bi-Turbo XperTune Performance Software

Performance ECU software upgrade improves horsepower, torque, and driving characteristics of the AMG GT's M178 4.0L V8 Bi-Turbo Engine by reprogramming various sensor inputs, air/fuel ratios, and boost pressure.                                 

NOTE: This is not a physical/shipped product.  This upgrade requires you to send us your ECU for re-programming.

FEATURES:

• Fits all Mercedes-Benz AMG GT's M178 4.0L Bi-Turbo Vehicles
• AMG GT / GT S / GT C will see about 585 HP and 590 ft/lbs of TQ at the crank
• AMG GT R will see about 625 HP and 630 ft/lbs TQ at the crank
• Fabspeed Motorsport saves your stock/factory ECU settings so that you can revert your vehicle back to stock settings at any time