The only big difference ptts vs ptt or ctt and ctts is the intake manifold with biger throttle body 78mm vs 82 mm . I saw that fvd ofers them in their big kits, but does anyone know where to buy them separatly ? I know also that vivid racing 3inch ypipe will fit , so my first step is to run turbo S manifold , agyncy ypipe , agency diverter valve(or forged) , bmc air filter and directly a tune for panamera Turbo S . This has been done before at cayenne thread with sucess ..

 

I thought about doing the bigger throttle. But after the turbos and dialing it back no need to get it. Doing the turbos was the best performance. The y pipe is good Def diverted valves. My intercooler r nice keeping it cool. Definitely start with the 20t upgrade use your stocks or get another set like I did minimize down time

 

Yeah Ben thats my plan prety much . With bigger turbocharger (450hp per turbo) backed down there is no need for the turbo S manifold . It only crossed my mind because it looks very cool lol