? A WORKED F22a????

are there any mods that can be done to this engine to boost it's performance,or not???
if so what can be done???? turbo,,,supercharger???

ive been told that they do make a stage 4 turbo (a monster) for the f22 now but i am not positive. this i just what ive been told by fellow f22

with that big of a turbo you will also have to get your engine resleaved...so you might as well swap an h22 and that way you can start with alot stronger engine