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BMW 3-Series (E90 E92) Forum
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e90-e92 exhaust inside anatomy
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| 09-29-2010, 02:04 PM | #1 |
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Lieutenant
 
55
Rep 495
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e90-e92 exhaust inside anatomy
Anyone know what the internal anatomy of our mufflers looks like. I really am interested to find out the difference between the performance exhaust and stock 335 exhaust...
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