Ford Mustang Forum - View Single Post - Catback but already have muffler help?
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post #7 of (permalink) Old 01-29-2012 Thread Starter
completestang
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So if I have 2.5 tubing and 3" muffler inlet and outlet will I be losing back preassure? If I am not then will it be ok to 3" pipes from muffler on back and add 3" tips?

MK
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