I had trans am..with long tubes and off road Y with 3" exhaust out the back and it was way too raspy so I put a magnaflow system with a cutout. I have had 2v mustangs with H-pipes and really like the sound but from what I have read x-pipes perform better.
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 2013
M6/SR Springs/ Lethal O/Rx/Magnaflow Street Cat-back/ Boss 302 intake/ Bama tune
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