sniperlif3
New member
Im looking into an STS twin turbo kit for my 1993 gmc sierra that has a 5.7L engine. My problem right now is that my exhaust sounds amazing as is and i am worried that the STS kit is designed to make all the pipes smaller in order to get and turbo boost which would mean the truck would sound stock besides for the turbo whine?
The only reason im picking STS is that they are the only turbo California legal for smog, carb, etc.
The only reason im picking STS is that they are the only turbo California legal for smog, carb, etc.