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BMW 3-Series (E90 E92) Forum
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Massive difference in exhaust sound with diameter
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| 05-06-2022, 07:23 AM | #1 |
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Private
 
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Rep 79
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Drives: 2008 335i sedan
Join Date: Apr 2021
Location: Vancouver Canada
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Massive difference in exhaust sound with diameter
i recently installed 2.5 inch cts downpipes (pure chineseium) with a bomiz valved exhaust on my n54 and the drone and rasp was horrible. i switched over to vrsf 3 or 3.5 inch diameter downpipes and it completely fixed it, nice low pitch with almost no rasp. i know that the downpipe design has a lot to do with how an exhaust sounds but i never know that just the diameter could make such a big difference.
also has anyone else had DP's with bad fitment from cts? i know a couple so far. |
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