| 05-24-2012, 10:55 AM | #1 |
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Vibration in the trunk, any experience?
Recently installed the Eisenmann Race system combined with a Flash upgrade.
The drone is a widely known phenomenon that occurs on the 1M (and I know theres a big thread about this already), however - I haven't heard of anyone having that problem while running Eisenmann. The drone is now much more extensive and is causing vibration in the trunk area - resulting in an incredibly annoying sound. It sounds like a rattlesnake in the trunk, and I have checked - there's no rattlesnake. Questions: * How many of you running aftermarket exhausts have drone issues? * How (if) have you solved this problem? * Might it disappear after some run-in? * Have any of you experienced this rattle in the trunk - if so, what's it from?
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| 05-24-2012, 10:59 AM | #2 |
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European Editor
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Maybe your exhaust is touching the body in some way. Check those X-links for clearence issues. Does this rattle snake noise happen under load? Or just cruising around at speed?
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| 05-24-2012, 11:41 AM | #3 | |
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Only under load, perhaps a little when cruising. Will revisit the shop tomorrow to have it checked
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| 05-24-2012, 12:05 PM | #4 |
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I believe that Metak has the Eisenmann system. He seemed to be very happy with it.
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| 05-24-2012, 12:41 PM | #5 |
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It is common for severe drone to cause rattles and vibrations in your trunk. Sometimes it subsides and sometimes it doesn't. I had a RPI exhaust on my 550i and my truck rattled for a few weeks and then it went away. I have no idea what was vibrating. Could you possible try to line your trunk with Dynamat. I believe there is an old thread where a member tried this.
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| 05-24-2012, 12:59 PM | #6 |
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If you're trying to eliminate THE DRONE I wouldn't waste your time or money on Dynamat or Second Skin Damplifier (what I used). I couldn't perceive any improvement with the stock exhaust. Even lined the trunk with towels with no effect.
Severe rattling is probably something else like body/exhaust interference. |
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| 05-24-2012, 01:12 PM | #7 | |
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