Quote:
Originally Posted by VGSON
Awesome. I have a rattle in my MPE muffler and have been contremplating making a similair exhaust. 3.5 in from downpipe back...Thanks for the research and nudge to do so....Do you have a catted down pipe or open? I have the 200 cell 4"
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No cat in my downpipe and it is now 4” to 3.5”
I made this downpipe myself like 4 years ago and it was 4” at the turbo and then had the stock exhaust collector size which was 3.25”.