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      04-12-2009, 09:05 AM   #4
ppatel223
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Drives: F10 I3.0
Join Date: Jan 2009
Location: AR

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woahh, dissecting muffler?? I think the cat on left side helps with emission when car is cold, because only left side is open when cold, and to help cat get hot faster. now dissect the motor and see what do you find interesting there? lol