StowesStang

Keeping in mind, I do not have headers, nor do I care to really have any at this time; are you saying that by keeping your Flowmaster 40s and replacing your BBK o/r x with a MAC Prochamber, you were able to clean up your sound that good????????? Does your stang have headers or stock????? I was told by a local muffler shop that I may "consider" upgrading my Flowmaster 40s to 50s and a friend suggest Spintech. Too much data transmitting in my brain, I think Im on overload!! If it is a BBK thing, that makes good sense to me but if its the mufflers, I dont know what the heck Im going to do!![]

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Brady98GT

my x-pipe did that when i first installed it. Turned out it was a bad gasket and it caused it to leak and rattle. It was an easy fix