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Originally Posted by Kisumaniac
I just got my exhaust changed from headers on... 2 1/4 inch pipe with the magnaflow muffler. It sounds ricey as i head 4k rpm. After about half an hour of driving it goes away for a bit. Is it the muffler or poor installation. By the way, i had my OEM cat replaced with a high flow.
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Exactly what did you use? Pics of the magnaflow muffler? What high flow cat?