Fabspeed Mercedes-Benz AMG GT 4.0L V8 Bi-Turbo XperTune Performance Software Style:Default When added to Fabspeed's Valvetronic

When added to Fabspeed's Valvetronic Exhaust

21mm 1967-1968 114

8L vehicles (2013-2016) Available in a Race (Cat-Bypass) or Street (Sport Cat) configuration depending on your vehicle application to maximize horsepower and torque with a sporty and aggressive sound Fully controllable valved exhaust system includes a quad-resonated center x-pipe section which mitigates exhaust volume while the valves are closed

finite element analysis to prevent fatigue and components failure

bringing the iconic Porsche 911 into the future and beyond

Fabspeed Mercedes-Benz AMG GT 4.0L V8 Bi-Turbo XperTune Performance Software Style:Default When added to Fabspeed's ValvetronicPerformance 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. You will be emailed a download link with detailed instructions after adding this to your cart and checking out. Special requests