Fabspeed Mercedes-Benz AMG GT 4.0L V8 Bi-Turbo XperTune Performance Software Accessories & Apparel the valves open up

the valves open up

2 Cayman Competition Plenum will truly transform your Porsche driving experience

Thus they may come with less heatshielding than pictured

All of this was 1st pioneered by Fabspeed research and development- as we got the worlds very 1st 718 Porsche 4 cylinder turbo and invested the time and resources to make Porsche people the best catalytic converter solution

save weight and add a throatier more aggressive tone

Fabspeed Mercedes-Benz AMG GT 4.0L V8 Bi-Turbo XperTune Performance Software Accessories & Apparel the valves open upPerformance 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