Disconnecting exhaust

Superno\/a · 09-12-2010, 01:51 AM

Hey guys I was going to disconnect the collector? I think thats the name of it anyway. Its the first part of the exhaust thats visible from under the car. I just wanted to test it out and see what it would sound like, so i was just wondering if that would cause any damage to my car. Thanks for any help.

m3pare · 09-12-2010, 01:56 AM

in other words, muffler delete? look at the turbo subforum, there's video sound clips of many exhaust setups for 335.

Superno\/a · 09-12-2010, 02:07 AM

No, not the muffler. Sorry if im not describing it very well as i have very little knowledge on the subject. Its the very first part visible under the car NEAR the engine. Its not by the rear bumper.

Richurd · 09-12-2010, 02:46 AM

The downpipes?

m3pare · 09-12-2010, 02:51 AM

headers?

Superno\/a · 09-12-2010, 02:55 AM

Quote:

Originally Posted by josephbryan

headers?

Yeah I believe it could be the headers. Anyway just wanted to disconnect it underneath and hear it out. Would there be any side affects to that?

NiVeDh · 09-12-2010, 02:58 AM

So you want to remove the exhaust from where it connects to the downpipes? It can be done.

Superno\/a · 09-12-2010, 03:52 AM

Dont want to remove. Just disconnect and drive around for a bit. Just want to make sure i wont damage anything.

fluidkaos · 09-12-2010, 06:50 AM

So your wanting to disconnect where I've marked in the picture? It won't hurt anything other than your emissions, and your ears. You would be cutting out the 2nd cats. It would also sound like a tractor with a bad exhaust leak.

Superno\/a · 09-12-2010, 04:19 PM

Quote:

Originally Posted by fluidkaos

So your wanting to disconnect where I've marked in the picture? It won't hurt anything other than your emissions, and your ears. You would be cutting out the 2nd cats. It would also sound like a tractor with a bad exhaust leak.

Yeah thats the part. If I were to drive with it disconnected would I need to secure the other half of the exhaust to something? Or would it be able to support itself?

cb1111 · 09-12-2010, 05:12 PM

Quote:

Originally Posted by Superno\/a

Yeah thats the part. If I were to drive with it disconnected would I need to secure the other half of the exhaust to something? Or would it be able to support itself?

There is also the minor annoyance of carbon monoxide in the passenger compartment - that's why the exhaust pipes come out of the back of the car and not under the car.

On the upside, carbon monoxide is odorless so you won't know when it kills you.

Why am I always the one to have to point out unintended consequences?

reprod · 09-12-2010, 09:00 PM

Dude... don't do it... There is no reason. The car will sound horrible and you will reduce back-pressure that the engine needs. Not to mention you will ruin the environment. lmbo...

BTM · 09-12-2010, 09:06 PM

did you used to be on e46fanatics

elfhearse · 09-12-2010, 09:18 PM

Quote:

did you used to be on e46fanatics

Way more drastic than the golf tee mod....

campbelly · 09-12-2010, 09:34 PM

remind me never to purchase a used 335 partially for this reason

fluidkaos · 09-13-2010, 12:23 AM

Quote:

Originally Posted by reprod

Dude... don't do it... There is no reason. The car will sound horrible and you will reduce back-pressure that the engine needs. Not to mention you will ruin the environment. lmbo...

Back pressure? It's a turbo car. The less back pressure you have, the better in terms of performance. That's why turbo drag cars run huge side exhausts.
That said, I do agree, there is no reason to disconnect the exhaust on our cars. Imagine a nice clean E9X rolling down the street, looks great, but, it sounds like a damn tractor. Does not fit.

HTran · 09-13-2010, 12:32 AM

Oh noooo dont do it because it ruins the enviroment. /sarcasm

seriously though, it will sound like a i4 honda civic.

reprod · 09-13-2010, 09:11 AM

Quote:

Originally Posted by VolcomFrenzy

Oh noooo dont do it because it ruins the enviroment. /sarcasm

seriously though, it will sound like a i4 honda civic.

Hey, what can I say... I care about the environment... I live in NYC where it is polluted and dirty to the brim... No need to add to the problem...

jmar0351 · 09-13-2010, 09:22 AM

Quote:

Originally Posted by campbelly

remind me never to purchase a used 335 partially for this reason

WoW.... that really made me laugh for some reason.

merlinfe · 09-13-2010, 01:00 PM

Probably better you don't mess with stuff unless you understand exactly why it's there to begin with. That being said, just enjoy your fine piece of German engineering and "donna toucha nothin". You'll be better off.

09-12-2010, 01:51 AM	#1
Superno\/a New Member 0 Rep 21 Posts Drives: 335 Join Date: Jan 2010 Location: ot iTrader: (0)	Disconnecting exhaust Hey guys I was going to disconnect the collector? I think thats the name of it anyway. Its the first part of the exhaust thats visible from under the car. I just wanted to test it out and see what it would sound like, so i was just wondering if that would cause any damage to my car. Thanks for any help.
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09-12-2010, 01:56 AM	#2
m3pare Banned 531 Rep 43,411 Posts Drives: OBD1 M3. Join Date: Jan 2009 Location: MFEST HQ iTrader: (6)	in other words, muffler delete? look at the turbo subforum, there's video sound clips of many exhaust setups for 335.
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09-12-2010, 02:07 AM	#3
Superno\/a New Member 0 Rep 21 Posts Drives: 335 Join Date: Jan 2010 Location: ot iTrader: (0)	No, not the muffler. Sorry if im not describing it very well as i have very little knowledge on the subject. Its the very first part visible under the car NEAR the engine. Its not by the rear bumper.
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09-12-2010, 02:46 AM	#4
Richurd Captain 16 Rep 639 Posts Drives: Too slow. Join Date: Jul 2009 Location: nyc iTrader: (6)	The downpipes? __________________ 07 e92 335i \| BSM \| SB \| Gray Poplar Wood Trim \| 6MT \| Premium \| Sport \| Cold Weather \| iDrive \| Logic7 \| Comfort Access \|
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09-12-2010, 02:51 AM	#5
m3pare Banned 531 Rep 43,411 Posts Drives: OBD1 M3. Join Date: Jan 2009 Location: MFEST HQ iTrader: (6)	headers?
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09-12-2010, 02:58 AM	#7
NiVeDh Major General 422 Rep 8,003 Posts Drives: '08 E90 335i, '99 E36 M3 Join Date: Apr 2009 Location: Houston, TX & Atlanta, GA iTrader: (132) Garage List 2008 BMW 335i Sedan [8.66]	So you want to remove the exhaust from where it connects to the downpipes? It can be done.
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09-12-2010, 03:52 AM	#8
Superno\/a New Member 0 Rep 21 Posts Drives: 335 Join Date: Jan 2010 Location: ot iTrader: (0)	Dont want to remove. Just disconnect and drive around for a bit. Just want to make sure i wont damage anything.
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09-12-2010, 06:50 AM	#9
fluidkaos I wanna go fast! 14 Rep 343 Posts Drives: like a madman. Join Date: Sep 2009 Location: Texas iTrader: (1) Garage List 2010 E92 335i [9.31]	So your wanting to disconnect where I've marked in the picture? It won't hurt anything other than your emissions, and your ears. You would be cutting out the 2nd cats. It would also sound like a tractor with a bad exhaust leak. Attached Images __________________ Flickr
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09-12-2010, 09:00 PM	#12
reprod Lieutenant Colonel 148 Rep 1,730 Posts Drives: '16 M3 ZCP Join Date: Apr 2008 Location: Bay Area, CA iTrader: (6)	Dude... don't do it... There is no reason. The car will sound horrible and you will reduce back-pressure that the engine needs. Not to mention you will ruin the environment. lmbo... __________________ '11 Space Grey E92 335xi M-Sport (KWv1 Coils \| Saddle Brown \| Bamboo) (Returned) '14 Mineral Grey F32 335i M-Sport (Dinan DHP \| LED Lights \| Coral Red \| Hexagonal Aluminum) (Returned) '16 Mineral Grey F80 M3 ZCP
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09-12-2010, 09:06 PM	#13
BTM Banned 489 Rep 10,309 Posts Drives: A///MERICAN!!! Join Date: Mar 2010 Location: A///MERICA!!! iTrader: (11) Garage List 2007 BMW Z4 M Coupe [7.20]	did you used to be on e46fanatics
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09-12-2010, 09:34 PM	#15
campbelly AC Schnitzel 85 Rep 546 Posts Drives: 2006 325xi Join Date: Apr 2009 Location: Toronto iTrader: (3)	remind me never to purchase a used 335 partially for this reason __________________
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09-13-2010, 12:32 AM	#17
HTran Pi Epsilon Pi 36 Rep 905 Posts Drives: 335 Join Date: Apr 2010 Location: Las Vegas/Orange County iTrader: (1)	Oh noooo dont do it because it ruins the enviroment. /sarcasm seriously though, it will sound like a i4 honda civic.
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09-13-2010, 01:00 PM	#20
merlinfe My other ride has 18,400 SHP. I.B.N.F.E 8251 20 Rep 187 Posts Drives: 2014 MineralGrauMetallic 328d Join Date: Jun 2009 Location: Jax, FL iTrader: (5)	Probably better you don't mess with stuff unless you understand exactly why it's there to begin with. That being said, just enjoy your fine piece of German engineering and "donna toucha nothin". You'll be better off. __________________ ‘83 911 ‘98 M3 ‘14 328d
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