Help...Smoke coming out of new exhaust

markkbp · 10-14-2010, 09:05 PM

Just install cat back exhaust and i notice smoke coming out when engine is hot. it's been five day and still coming out. Is that normal or something seriously wrong??

Express · 10-14-2010, 09:11 PM

normal

madmanhiker · 10-14-2010, 10:27 PM

totally normal... including the nasty burnt smell. Depending on how much you drive the car, it'll stick around for a little while during the break-in period of the new mufflers.

cn555ic · 10-14-2010, 10:34 PM

The fiberglass packing/dampening material in the mufflers needs to cooked as well as exhuaust with resonators...The smoke and the smell will eventually subside.

Bimmer This · 10-14-2010, 10:55 PM

Quote:

Originally Posted by cn555ic

The fiberglass packing/dampening material in the mufflers needs to cooked as well as exhuaust with resonators...The smoke and the smell will eventually subside.

+1.

markkbp · 10-14-2010, 11:03 PM

Quote:

Originally Posted by madmanhiker

totally normal... including the nasty burnt smell. Depending on how much you drive the car, it'll stick around for a little while during the break-in period of the new mufflers.

Thanks guys,I feel better now. Going to give it another few days. I've been getting the middle finger by driver behind me especially the guys driving vert...

Bimmer This · 10-14-2010, 11:04 PM

because of the smoke or the smell?

markkbp · 10-14-2010, 11:06 PM

Quote:

Originally Posted by Bimmer This

because of the smoke or the smell?

I think both...

Bimmer This · 10-14-2010, 11:14 PM

lol, gives a new meaning to the term "I'm gonna smoke you"

forza1976 · 10-14-2010, 11:17 PM

Quote:

Originally Posted by Bimmer This

lol, gives a new meaning to the term "I'm gonna smoke you"

usu335i · 10-15-2010, 12:08 AM

What exhaust did you install?

vasillalov · 10-15-2010, 07:23 AM

Funny! I've not had any problems of such sort with my AE Exhaust and my AR downpipes.

Are you sure that no packing pellets got inside of your exhaust?

markkbp · 10-15-2010, 07:57 AM

Quote:

Originally Posted by usu335i

What exhaust did you install?

They are UR cat back

Quote:

Originally Posted by vasillalov

Funny! I've not had any problems of such sort with my AE Exhaust and my AR downpipes.

Are you sure that no packing pellets got inside of your exhaust?

I thought it was that to and brought it back to my shop and complained, they check it out again and nothing.

usu335i · 10-15-2010, 10:47 AM

I just had my AR catless downpipes installed yesterday along with the AFE exhaust. I had smoke and a weird smell as well. Hopefully it goes away soon.

10-14-2010, 09:05 PM	#1
markkbp Private 5 Rep 71 Posts Drives: 335 Join Date: Sep 2010 Location: ca iTrader: (2)	Help...Smoke coming out of new exhaust Just install cat back exhaust and i notice smoke coming out when engine is hot. it's been five day and still coming out. Is that normal or something seriously wrong??
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10-14-2010, 09:11 PM	#2
Express Major General 369 Rep 8,693 Posts Drives: 06 330i Join Date: Dec 2008 Location: The Promise Land iTrader: (17) Garage List 2006 BMW 330i [8.30]	normal
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10-14-2010, 10:27 PM	#3
madmanhiker Lieutenant Colonel 82 Rep 1,615 Posts Drives: '11 E92 335i Join Date: Jul 2008 Location: Jacksonville, Fl iTrader: (5) Garage List 2011 335i M-Sport [6.00] 2008 328i Sport Pre ... [0.00]	totally normal... including the nasty burnt smell. Depending on how much you drive the car, it'll stick around for a little while during the break-in period of the new mufflers.
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10-14-2010, 10:34 PM	#4
cn555ic 441 Rep 18,331 Posts Drives: 335i Join Date: Jun 2007 Location: US iTrader: (6)	The fiberglass packing/dampening material in the mufflers needs to cooked as well as exhuaust with resonators...The smoke and the smell will eventually subside.
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10-14-2010, 11:04 PM	#7
Bimmer This Major General 99 Rep 6,473 Posts Drives: 2007 BMW 335i Join Date: Nov 2008 Location: Westminster iTrader: (3)	because of the smoke or the smell?
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10-14-2010, 11:14 PM	#9
Bimmer This Major General 99 Rep 6,473 Posts Drives: 2007 BMW 335i Join Date: Nov 2008 Location: Westminster iTrader: (3)	lol, gives a new meaning to the term "I'm gonna smoke you"
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10-15-2010, 12:08 AM	#11
usu335i Keep it clean 111 Rep 209 Posts Drives: X3MC Join Date: Sep 2010 Location: Boise iTrader: (3)	What exhaust did you install?
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10-15-2010, 07:23 AM	#12
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]	Funny! I've not had any problems of such sort with my AE Exhaust and my AR downpipes. Are you sure that no packing pellets got inside of your exhaust? __________________ 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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10-15-2010, 10:47 AM	#14
usu335i Keep it clean 111 Rep 209 Posts Drives: X3MC Join Date: Sep 2010 Location: Boise iTrader: (3)	I just had my AR catless downpipes installed yesterday along with the AFE exhaust. I had smoke and a weird smell as well. Hopefully it goes away soon.
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