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Old 03-24-2011, 06:07 PM
bmw325 bmw325 is offline
Officially Welcomed to the 'Fest
Location: New York, NY
 
Join Date: Dec 2001
Posts: 8,266
Mein Auto: 528i
Great writeup! love the before and after videos--don't think anyone has taken the time to do that before. Looks like the perf exhaust doesn't have the exhaust flap to disable the driver side muffler on cold startup (judging by the fact that both exhausts had smoke coming out in the perf video vs just 1 in the stock cold start video).
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