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      03-03-2013, 06:34 PM   #10
RobBMW
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Drives: 09' e90 328i Sport Package
Join Date: Feb 2013
Location: Los Angeles

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Just like Frenk said you just remove the muffler and replace it with a striaght pipe. Now, because there is nothing to muffle the sound, the exhaust is louder. I wouldn't trust normal body shops with a job like this because its easy to mess up. I have a place that specializes in exhaust work and have done this conversion many times. 2k Racing off of Reseda on the 101 Freeway in California if you're nearby
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