Exhaust Material and Diameter?

BGR · 03-31-2015, 10:19 AM

From what I can tell, the diameter is 2.5". Can someone confirm?

Also, what type of metal is it? Aluminum? Steel? If still, what type?

Thanks.

Steeler · 03-31-2015, 11:00 AM

Stainless steel for sure

non M 2" diameter not sure of M diameter

BGR · 04-03-2015, 03:07 PM

Are you sure about it being 2"? Elsewhere I've seen 2.5".

Steeler · 04-03-2015, 04:37 PM

Quote:

Originally Posted by BGR

Are you sure about it being 2"? Elsewhere I've seen 2.5".

Yep just cut mine up to put in an x-pipe.
It is actually smaller than 2" . The x-pipe had 2" OD piping that the stock exhaust tubing slid into.
The M may have 2.5

BGR · 04-03-2015, 05:59 PM

Quote:

Originally Posted by dbarton62

Quote:

Originally Posted by BGR

Are you sure about it being 2"? Elsewhere I've seen 2.5".

Yep just cut mine up to put in an x-pipe.
It is actually smaller than 2" . The x-pipe had 2" OD piping that the stock exhaust tubing slid into.
The M may have 2.5

Interesting. So they ran dual 2" back to the muffler. Seems odd.

Steeler · 04-03-2015, 06:02 PM

Quote:

Originally Posted by BGR

Interesting. So they ran dual 2" back to the muffler. Seems odd.

Why?

BGR · 04-03-2015, 06:23 PM

Cost of material and work to get it done. Why not run just one 3"?

Steeler · 04-03-2015, 06:28 PM

Guess BMW left that up to the aftermarket to figure out

03-31-2015, 10:19 AM	#1
BGR Captain 518 Rep 788 Posts Drives: C7 GS 7MT; e90 M3 6MT Join Date: Nov 2013 Location: Midwest iTrader: (1)	Exhaust Material and Diameter? From what I can tell, the diameter is 2.5". Can someone confirm? Also, what type of metal is it? Aluminum? Steel? If still, what type? Thanks.
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03-31-2015, 11:00 AM	#2
Steeler Colonel 2429 Rep 2,704 Posts Drives: Built not Bought 04 Z4 VF Join Date: Feb 2013 Location: Kitchener Ontario Canada iTrader: (2)	Stainless steel for sure non M 2" diameter not sure of M diameter __________________ W2A Intercooled Vortech V3Si, custom ducting, Alpha N, 60# Bosch,2.62 pulley, multi port WMI, Severn Tuning(pokeybritches), Tial, magnaflow,SS race muffler, 42 design,3.91LSD, H&R, Hotchkis,ST coils,Konis, Megan camber arms, AKG SS, Nylon mounts, Poly bushings, Carbon interior, CF Aero.APEX
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04-03-2015, 03:07 PM	#3
BGR Captain 518 Rep 788 Posts Drives: C7 GS 7MT; e90 M3 6MT Join Date: Nov 2013 Location: Midwest iTrader: (1)	Are you sure about it being 2"? Elsewhere I've seen 2.5".
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04-03-2015, 06:23 PM	#7
BGR Captain 518 Rep 788 Posts Drives: C7 GS 7MT; e90 M3 6MT Join Date: Nov 2013 Location: Midwest iTrader: (1)	Cost of material and work to get it done. Why not run just one 3"?
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04-03-2015, 06:28 PM	#8
Steeler Colonel 2429 Rep 2,704 Posts Drives: Built not Bought 04 Z4 VF Join Date: Feb 2013 Location: Kitchener Ontario Canada iTrader: (2)	Guess BMW left that up to the aftermarket to figure out __________________ W2A Intercooled Vortech V3Si, custom ducting, Alpha N, 60# Bosch,2.62 pulley, multi port WMI, Severn Tuning(pokeybritches), Tial, magnaflow,SS race muffler, 42 design,3.91LSD, H&R, Hotchkis,ST coils,Konis, Megan camber arms, AKG SS, Nylon mounts, Poly bushings, Carbon interior, CF Aero.APEX
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