camzaro28

tonite i decided to put my muffler on myself instead of payin someone to do it.. well when all is said and done it sounds the same as it did b4.. i put original american thunder flowmaster on it.. and left the tailpipe off. can someone explain why there is no difference???????? very slight difference if any at all..

MustangEater82

Is this over a stock muffler?


also with new muffler they break in after some time.