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Old 11-04-2008, 10:18 AM   #11
D1BADZ's Avatar
Drives: 2010 IOM in-n-out 2SS
Join Date: Oct 2008
Location: San Jose, Ca
Posts: 1,325
Cut the mufflers out and run 4" tips out the back, or turndowns if cost is a factor, that shouldnt prompt any check engine lights
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