I can't call them cuz i'm not in americaNew2Import wrote:I think its 2 1/2" piping all the way back. But just call Stillen. They will give you the specs. I know its the same size all the way back. Its a straight thru muffler design also.
Thanks alot , I will be very thankfulNew2Import wrote:No way to measure unless its unbolted. Ill give them a call for ya.