Vibration from Berk mids on cross brace

SloPoke · 07-14-2013, 06:01 AM

I just put on BMS DPs and Berk mids on my 1M yesterday and have noticed that there is a vibration or knocking at idle. I looked underneath and it appears that the mids are hitting the steel cross brace just behind the resonators. Anyone else have this problem? Ideas on a fix?

NORAGRETS · 07-14-2013, 02:04 PM

Quote:

Originally Posted by SloPoke

I just put on BMS DPs and Berk mids on my 1M yesterday and have noticed that there is a vibration or knocking at idle. I looked underneath and it appears that the mids are hitting the steel cross brace just behind the resonators. Anyone else have this problem? Ideas on a fix?

Yes same exact issue...exhaust shop can fix with custom Mounts or mods to hangars etc

SloPoke · 07-14-2013, 07:49 PM

Quote:

Originally Posted by Twhill19

Quote:

Originally Posted by SloPoke

I just put on BMS DPs and Berk mids on my 1M yesterday and have noticed that there is a vibration or knocking at idle. I looked underneath and it appears that the mids are hitting the steel cross brace just behind the resonators. Anyone else have this problem? Ideas on a fix?

Yes same exact issue...exhaust shop can fix with custom Mounts or mods to hangars etc

Thanks. I'm thinking about wrapping the affected area on the mids with fiberglass to get rid of the vibration.

foghat · 07-14-2013, 09:03 PM

I have do not have this issue. But I do not have a 1m - though I think the exhaust is the same. You should probably try get it fixed vs. wrapping; likely is causing unnecessary stress on the exhaust.

fastdrivingjr · 07-15-2013, 06:20 AM

When I had my 370z with Berk test pipes (catless pipes) multiple people noticed they stuck out a bit causing the mids to be pushed down on to the cross bar... What we did was use metal spacers or have an exhaust shop bend/ push the mids up .. Then some users put car on jack at the rear insert something under the mids, then drop the jacks down slowely letting the object(ex. cement block wrapped in cloth) push the mids up some and bend exhaust some

kits135i · 07-15-2013, 09:52 AM

The instructions from Berk say it will vibrate if you do not make sure its up and tightened. It's not something that simple?

Derk1127 · 07-15-2013, 12:26 PM

I had a similar problem with my 135, I had a hanger that bent in shipping. If I remember right there isn't a hanger in the mid pipes. I'm not familiar with the 1m exhaust but you can see if you can play with the hangers to get the mid pipes up. You could also get
Some washers to bring the brace down

kkrikkett · 07-15-2013, 03:33 PM

Quote:

Originally Posted by SloPoke

I just put on BMS DPs and Berk mids on my 1M yesterday and have noticed that there is a vibration or knocking at idle. I looked underneath and it appears that the mids are hitting the steel cross brace just behind the resonators. Anyone else have this problem? Ideas on a fix?

The two stock hangers on the 135 are adjustable you have to loosen them off and push up on exhaust and re tighten clamps This lifts mid pipes from cross brace to allow for clearance. Just installed mine with no issues. It is close to cross brace but does not rattle on it. I think the 1m should be identical underneath

07-14-2013, 06:01 AM	#1
SloPoke Lieutenant 128 Rep 548 Posts Drives: 2010 135i Join Date: Dec 2009 Location: Canton GA iTrader: (6)	Vibration from Berk mids on cross brace I just put on BMS DPs and Berk mids on my 1M yesterday and have noticed that there is a vibration or knocking at idle. I looked underneath and it appears that the mids are hitting the steel cross brace just behind the resonators. Anyone else have this problem? Ideas on a fix?
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07-14-2013, 09:03 PM	#4
foghat Captain 59 Rep 913 Posts Drives: 2008 135i Join Date: Jun 2009 Location: Great White North iTrader: (1)	I have do not have this issue. But I do not have a 1m - though I think the exhaust is the same. You should probably try get it fixed vs. wrapping; likely is causing unnecessary stress on the exhaust.
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07-15-2013, 06:20 AM	#5
fastdrivingjr Private First Class 3 Rep 141 Posts Drives: ducati 749 Join Date: Jun 2013 Location: ATLANTA GA iTrader: (0)	When I had my 370z with Berk test pipes (catless pipes) multiple people noticed they stuck out a bit causing the mids to be pushed down on to the cross bar... What we did was use metal spacers or have an exhaust shop bend/ push the mids up .. Then some users put car on jack at the rear insert something under the mids, then drop the jacks down slowely letting the object(ex. cement block wrapped in cloth) push the mids up some and bend exhaust some
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07-15-2013, 09:52 AM	#6
kits135i Private First Class 9 Rep 145 Posts Drives: Coming Soon Join Date: Feb 2013 Location: San Diego iTrader: (1)	The instructions from Berk say it will vibrate if you do not make sure its up and tightened. It's not something that simple?
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07-15-2013, 12:26 PM	#7
Derk1127 Private First Class 10 Rep 112 Posts Drives: 2009 AW 135 Join Date: Sep 2008 Location: Seattle, WA iTrader: (1)	I had a similar problem with my 135, I had a hanger that bent in shipping. If I remember right there isn't a hanger in the mid pipes. I'm not familiar with the 1m exhaust but you can see if you can play with the hangers to get the mid pipes up. You could also get Some washers to bring the brace down
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