Is OEM Exhaust 3 Or 4 Pieces?

hl0m4n · 12-20-2009, 08:11 PM

looking at the entire oem exhaust does it fall off in 3 or 4 pieces? from the pic im assuming 4 the cats, xpipe, connecting, and muffler?

or is it just 3 pieces cats and xpipe welded together, connecting, and muffler hence slip on exhaust systems only being connecting and muffler...

FStop7 · 12-20-2009, 08:17 PM

3 pieces:

X-pipe

Left muffler

Right muffler

The connecting pipes are part of the each muffler assembly. That's why you have to cut them for certain aftermarket exhausts.

sard · 12-20-2009, 08:43 PM

Lol all wrong..

Green///Hell · 12-20-2009, 08:44 PM

Quote:

Originally Posted by FStop7

3 pieces:

X-pipe

Left muffler

Right muffler

The connecting pipes are part of the each muffler assembly. That's why you have to cut them for certain aftermarket exhausts.

wtf lol

It's 3 pieces Muffler and connecting pipes are all together, midpipes come of in two sections from the primary cats and secondary cats with resonators rear section

sard · 12-20-2009, 08:48 PM

It's just the X-pipe and the muffler ..

Green///Hell · 12-20-2009, 08:58 PM

Oh snap your right, for some reason I forgot mines clamped together because its been chopped up

sard · 12-20-2009, 08:59 PM

Oh haha

hl0m4n · 12-20-2009, 09:31 PM

wait what

.

ok the connecting pipe and muffler are connected hence the slip on exhaust systems being 100% bolt on.

now is the cat and xpipe connected or does the xpipe fall off the cat? by cat i mean the front pipe with the 02 sensor.

McLuVan · 12-20-2009, 10:37 PM

headers-->sec 1-->sec 2-->mufflers
like this

McLuVan · 12-20-2009, 10:38 PM

except with the oem exhaust, that highlighted part is one piece

FStop7 · 12-20-2009, 10:38 PM

Quote:

Originally Posted by Panda///Monic

wtf lol

It's 3 pieces Muffler and connecting pipes are all together, midpipes come of in two sections from the primary cats and secondary cats with resonators rear section

Wow, that was pretty bad of me. I was thinking of my RPI setup, it's been so long since I was stock.

Stock is two pieces. X-pipe, and muffler. The connecting pipes are integrated into the muffler.

hl0m4n · 12-20-2009, 11:41 PM

ok... entire section 1 is together and comes off without cutting. now are you guys sure that part 3 and 2 are not connected as well and that part 2 can be replaced (xpipe)?

mixja · 12-21-2009, 12:55 AM

The stock exhaust system is four pieces:

- 2 x Headers (#4 in the picture above)
- 1 x Down Pipe/X-Pipe (#2 and #3 in the picture above - i.e #2 and #3 is a single piece)
- 1 x Mufflers (#1 in the picture above)

MrHarris · 12-21-2009, 04:54 AM

^picture up there labeled 1-4 is correct except most people don't consider the headers the 4th section.

Periokid · 12-21-2009, 08:12 AM

Quote:

Originally Posted by hl0m4n

ok... entire section 1 is together and comes off without cutting. now are you guys sure that part 3 and 2 are not connected as well and that part 2 can be replaced (xpipe)?

2 and 3 are one piece as mixja said.

isabayo · 12-21-2009, 08:48 AM

everything from headers back is 2 pieces. The cats/xpipe is 1 piece and the muffler/connecting pipes is 1 piece.

J08M3 · 12-21-2009, 09:03 AM

Quote:

Originally Posted by MrHarris

^picture up there labeled 1-4 is correct except most people don't consider the headers the 4th section.

no it's not. Headers, xpipe, mufflers. 3 sections if you count headers.

McLuVan · 12-21-2009, 11:32 PM

wow
this is so complicated

12-20-2009, 08:11 PM	#1
hl0m4n Major General 2158 Rep 5,623 Posts Drives: BMW Join Date: Nov 2006 Location: NY iTrader: (58)	Is OEM Exhaust 3 Or 4 Pieces? looking at the entire oem exhaust does it fall off in 3 or 4 pieces? from the pic im assuming 4 the cats, xpipe, connecting, and muffler? or is it just 3 pieces cats and xpipe welded together, connecting, and muffler hence slip on exhaust systems only being connecting and muffler... __________________ Cars: 07 335i ► 08 328i ► 11 328xi ► 13 M3 ► 17 M4 ► 14 M6
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12-20-2009, 08:17 PM	#2
FStop7 I like cars 329 Rep 5,052 Posts Drives: M6 Join Date: Oct 2008 Location: Newbury Park, CA iTrader: (3)	3 pieces: X-pipe Left muffler Right muffler The connecting pipes are part of the each muffler assembly. That's why you have to cut them for certain aftermarket exhausts. __________________ My photostream: http://www.flickr.com/photos/racelap/
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12-20-2009, 08:43 PM	#3
sard Major 235 Rep 1,334 Posts Drives: 2008 M3 Join Date: Oct 2008 Location: Southern California iTrader: (1)	Lol all wrong.. __________________ E92 M3 - DCT - 20" BBS LM-R - KW Clubsport - Akrapovic Exhaust - Powerchip Tune - Arkym Aero Kit - HID Halo
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12-20-2009, 08:48 PM	#5
sard Major 235 Rep 1,334 Posts Drives: 2008 M3 Join Date: Oct 2008 Location: Southern California iTrader: (1)	It's just the X-pipe and the muffler .. __________________ E92 M3 - DCT - 20" BBS LM-R - KW Clubsport - Akrapovic Exhaust - Powerchip Tune - Arkym Aero Kit - HID Halo
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12-20-2009, 08:58 PM	#6
Green///Hell Colonel 183 Rep 2,872 Posts Drives: 991 GT3, F15 X5, 1199S Join Date: Feb 2009 Location: Chicago iTrader: (5)	Oh snap your right, for some reason I forgot mines clamped together because its been chopped up
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12-20-2009, 08:59 PM	#7
sard Major 235 Rep 1,334 Posts Drives: 2008 M3 Join Date: Oct 2008 Location: Southern California iTrader: (1)	Oh haha __________________ E92 M3 - DCT - 20" BBS LM-R - KW Clubsport - Akrapovic Exhaust - Powerchip Tune - Arkym Aero Kit - HID Halo
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12-20-2009, 09:31 PM	#8
hl0m4n Major General 2158 Rep 5,623 Posts Drives: BMW Join Date: Nov 2006 Location: NY iTrader: (58)	wait what . ok the connecting pipe and muffler are connected hence the slip on exhaust systems being 100% bolt on. now is the cat and xpipe connected or does the xpipe fall off the cat? by cat i mean the front pipe with the 02 sensor. __________________ Cars: 07 335i ► 08 328i ► 11 328xi ► 13 M3 ► 17 M4 ► 14 M6
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12-20-2009, 10:37 PM	#9
McLuVan Lieutenant General 304 Rep 13,114 Posts Drives: ///M3 Join Date: Jan 2008 Location: Socal~818~ iTrader: (1)	headers-->sec 1-->sec 2-->mufflers like this __________________
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12-20-2009, 10:38 PM	#10
McLuVan Lieutenant General 304 Rep 13,114 Posts Drives: ///M3 Join Date: Jan 2008 Location: Socal~818~ iTrader: (1)	except with the oem exhaust, that highlighted part is one piece __________________
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12-20-2009, 11:41 PM	#12
hl0m4n Major General 2158 Rep 5,623 Posts Drives: BMW Join Date: Nov 2006 Location: NY iTrader: (58)	ok... entire section 1 is together and comes off without cutting. now are you guys sure that part 3 and 2 are not connected as well and that part 2 can be replaced (xpipe)? Attached Images __________________ Cars: 07 335i ► 08 328i ► 11 328xi ► 13 M3 ► 17 M4 ► 14 M6
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12-21-2009, 12:55 AM	#13
mixja Captain 50 Rep 780 Posts Drives: 2011 E90 DCT Silverstone Join Date: Jun 2008 Location: Beverly Hils, CA iTrader: (1)	The stock exhaust system is four pieces: - 2 x Headers (#4 in the picture above) - 1 x Down Pipe/X-Pipe (#2 and #3 in the picture above - i.e #2 and #3 is a single piece) - 1 x Mufflers (#1 in the picture above)
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12-21-2009, 04:54 AM	#14
MrHarris yodog 197 Rep 5,025 Posts Drives: '86 Corolla Join Date: Jun 2007 Location: Diamond Bar, Ca iTrader: (5) Garage List 2009 BMW [10.00]	^picture up there labeled 1-4 is correct except most people don't consider the headers the 4th section. __________________ 2009 E92 M3 \| Alpine White \| Black Extended \| Advan RS \| Turner Test Pipes \| Dinan Axle-Back \| OETuning \| Eibach Springs \| UUC SSK \| VRS Front Lip \| VRS Type I Diffuser \| Matte Black \| RPi Scoops \| MS Filter \| Yokohama AD08 \| F1 Pinnacle Special Thanks: Gintani \| OETuning \| eAs
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12-21-2009, 08:48 AM	#16
isabayo First Lieutenant 44 Rep 319 Posts Drives: G05 X5 50i M Sport Join Date: Nov 2006 Location: MD iTrader: (7)	everything from headers back is 2 pieces. The cats/xpipe is 1 piece and the muffler/connecting pipes is 1 piece.
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12-21-2009, 11:32 PM	#18
McLuVan Lieutenant General 304 Rep 13,114 Posts Drives: ///M3 Join Date: Jan 2008 Location: Socal~818~ iTrader: (1)	wow this is so complicated __________________
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