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Old 02-17-2008, 01:05 PM   #48
jtrejo
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Join Date: Aug 2007
Location: Socal, Riverside
Posts: 487
My Ride: e46 m3
you should put in a bypass valve with muffler then bypass straight pipe. i think taza's car is like that. i had made a bypass but i was not turbo so mainly for sound here is link. would be great for you turbo cars.

http://www.m3forum.net/m3forum/showthread.php?t=156029
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