Weird Noise from the rear after downpipe install

xnoriboyx · 03-26-2012, 06:00 PM

exhaust leak?

it only squeals like this on idle around 650 rpm and disappears when i rev it to a higher rpm

xnoriboyx · 03-27-2012, 02:16 AM

anybody experience this? =(

Fred_Boosted · 03-27-2012, 08:47 AM

I'm not sure... Sounds like a rattle?

vasillalov · 03-27-2012, 10:09 AM

Downpipes are not installed correctly and they are hitting on subframe or each other.

...or you have a clamp that's not tight and it is rattling.

03-26-2012, 06:00 PM	#1
xnoriboyx Private 3 Rep 57 Posts Drives: 335xi Join Date: May 2011 Location: Alberta, Canada iTrader: (0)	Weird Noise from the rear after downpipe install exhaust leak? it only squeals like this on idle around 650 rpm and disappears when i rev it to a higher rpm __________________ 2007 335xi E90 SMB// JB4, DCI, AMS FMIC, AE Exhaust, AR DP, Cyba Scoops Last edited by xnoriboyx; 03-27-2012 at 12:37 AM..
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03-27-2012, 02:16 AM	#2
xnoriboyx Private 3 Rep 57 Posts Drives: 335xi Join Date: May 2011 Location: Alberta, Canada iTrader: (0)	anybody experience this? =( __________________ 2007 335xi E90 SMB// JB4, DCI, AMS FMIC, AE Exhaust, AR DP, Cyba Scoops
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03-27-2012, 08:47 AM	#3
Fred_Boosted Captain 90 Rep 632 Posts Drives: 335i Join Date: Nov 2011 Location: USA iTrader: (1) Garage List 2010 BMW 335i [8.00]	I'm not sure... Sounds like a rattle?
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03-27-2012, 10:09 AM	#4
vasillalov Mad Linux Guru On The Loose 1121 Rep 5,396 Posts Drives: 2008 335i Sedan, 2023 M3 Join Date: Aug 2009 Location: Chicago, IL iTrader: (5) Garage List 2023 BMW M3 [0.00] 2008 335i E90 [8.00]	Downpipes are not installed correctly and they are hitting on subframe or each other. ...or you have a clamp that's not tight and it is rattling. __________________ 6MT \| COBB \| AR \| AE \| Forge DV \| HPF \| P3 Gauge \| Hybrid Intake \| O.S.Giken TCD \| All M3 bits \| TCKLine \| StopTech \| UUC \| ER \| SPEC
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