Hey guys, I installed an s trim on my car and callled quite a few places to get the car tuned and they all say the same thing to me, they say I need the msd 6btm and the fmu. I was under the impression that if you have the right injectors the fmu was not needed. I also thought that if the car was tuned right then you didnt need the boost retard. How is everyone on here getting their car tuned without this stuff?