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BMW 3-Series (E90 E92) Forum
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exhaust question??
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| 06-22-2011, 06:31 PM | #1 |
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First Lieutenant
 15
Rep 363
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exhaust question??
hey guys i was reading on here and found a thread about the factory exhaust, the guy removed the factory resonator and x-pipe and just replaced it with a straight pipe and cut out the factory muffs and put on some magnaflows. i was wondering if i did this but just kept the factory muffs, would doing this affect the performance of the car. i just want the car to sound a little meaner but do not want to sacrifice any performance?
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