05-04-2018, 12:13 AM | #1 |
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Hi All. So I recently installed he M performance exhaust with my ER catless DP and am getting much more drone than expected. Looking to see if anyone has any tips or tricks possibly to mitigate this some at least.
I've heard a wider front pipe may help but can't find anyone other than Akra or meisterschaft (can't remember which) making one but it's like 950 bucks. My specific issue is drone around 2700-3200 RPM and then like a high pitch drone noise that builds and peaks at 4.5K and then again at like 6k. Anyways... any feedback or advice is appreciated! For what it's worth I'm loving the sound of the exhaust otherwise and love the look and quality of it.
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05-04-2018, 09:53 AM | #3 |
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Did that before installing :-/
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05-04-2018, 10:03 AM | #4 |
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some people have welded in the stock resonator check out below:
http://f87.bimmerpost.com/forums/sho...ight=resonator i was considering doing this but i have gotten use to it so it doesnt bother me anymore |
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05-04-2018, 10:34 AM | #5 |
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I've deleted asd and added stock resonator. There is still drone but I haven't heard an m2 with MPE and no resonator to know how different it is
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05-04-2018, 10:36 AM | #6 |
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I have video but it's just not captured
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05-04-2018, 10:37 AM | #7 | |
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05-04-2018, 10:38 AM | #8 |
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How bad is the drone?
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05-04-2018, 10:41 AM | #10 | |
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05-04-2018, 10:47 AM | #11 |
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Though it doesn't sound nearly as bad on video...
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05-04-2018, 01:14 PM | #13 |
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Yeah unfortunately the video really doesn't do it justice
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05-04-2018, 01:14 PM | #14 | ||
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05-04-2018, 01:19 PM | #15 |
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05-04-2018, 01:25 PM | #16 |
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I saw on the other thread that you put the stock resonator back in there. Thoughts on that? Are you running with a catless downpipe? This is one that crossed my mind to try
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05-04-2018, 01:29 PM | #17 | |
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Running the stock down pipe and MPE the car sounds very civilized especially after adding some sound deadening back into the car. Sometimes I even think it's too quiet lol. But if you step on it the MPE still sings. |
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05-04-2018, 07:43 PM | #18 | ||
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