335 exhaust inlet outlet diameter

colt9987 · 01-21-2012, 09:18 AM

I was wondering what the 335 stock exhaust inlet and outlet diameters were and also if it was center/center, center/offset, or offset/offset. Was looking to purchase some borla universal mufflers. Thanks!

colt9987 · 01-21-2012, 10:13 AM

bump

colt9987 · 01-22-2012, 09:18 AM

bump

Phantom 335i · 01-22-2012, 09:59 AM

I am wondering the same thing as I am thinking of swapping out my mufflers when my car comes out of storage

Let me know what mufflers you go with.

E92TTKING · 01-22-2012, 10:04 AM

2.5

cn555ic · 01-22-2012, 10:27 AM

2.25

colt9987 · 01-22-2012, 11:28 AM

hmmmm so 2.5 or 2.25???? and is it center/center center/offset or offset/offset? thanks for any help!

cn555ic · 01-22-2012, 11:39 AM

Quote:

Originally Posted by colt9987

hmmmm so 2.5 or 2.25???? and is it center/center center/offset or offset/offset? thanks for any help!

each connection piping is 2.25. Upgraded aftermarket exhaust systems use 2.50 tubing all around.

colt9987 · 01-22-2012, 01:38 PM

Al

colt9987 · 01-22-2012, 01:39 PM

Alright so I will need the 2.25 inlet and outlet universal muffler.. But will I need center/center center/offset or offset/offset? Any idea?

Brey335i · 01-22-2012, 01:45 PM

I had universal mufflers at one point. You need offset / offset. The stock exhaust comes close together around the differential and then splits apart again to go out to the tips. So you need the inlets as far in to the middle as possible and the outlets as far out as possible.

colt9987 · 01-22-2012, 01:56 PM

Quote:

Originally Posted by Brey335i

I had universal mufflers at one point. You need offset / offset. The stock exhaust comes close together around the differential and then splits apart again to go out to the tips. So you need the inlets as far in to the middle as possible and the outlets as far out as possible.

Brey.. Did you like the universal mufflers? And did you have the 2.25 inlet outlet diameter just to double check that is right

Zasquatch · 01-23-2012, 08:53 AM

Stock piping is 60 mm OD.

subieworx · 01-24-2012, 05:49 PM

Mine are straight through magnaflows. 2.5" inlet and outlet that I adapted to the stock piping at the rear diff.

Brey335i · 01-24-2012, 05:58 PM

Quote:

Originally Posted by colt9987

Brey.. Did you like the universal mufflers? And did you have the 2.25 inlet outlet diameter just to double check that is right

No. I thought they were too quiet and didn't sound as good as the stock mufflers did. Save your money, buy the BMW PE and call it a day.

And idk about the diameter. I bought it used.

01-21-2012, 09:18 AM	#1
colt9987 Lieutenant 45 Rep 437 Posts Drives: 135i Join Date: Sep 2009 Location: dallas iTrader: (2)	335 exhaust inlet outlet diameter I was wondering what the 335 stock exhaust inlet and outlet diameters were and also if it was center/center, center/offset, or offset/offset. Was looking to purchase some borla universal mufflers. Thanks!
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01-21-2012, 10:13 AM	#2
colt9987 Lieutenant 45 Rep 437 Posts Drives: 135i Join Date: Sep 2009 Location: dallas iTrader: (2)	bump
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01-22-2012, 09:18 AM	#3
colt9987 Lieutenant 45 Rep 437 Posts Drives: 135i Join Date: Sep 2009 Location: dallas iTrader: (2)	bump
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01-22-2012, 09:59 AM	#4
Phantom 335i Second Lieutenant 9 Rep 270 Posts Drives: 335i Join Date: Nov 2011 Location: Edmonton iTrader: (2) Garage List 2007 BMW 335i [0.00]	I am wondering the same thing as I am thinking of swapping out my mufflers when my car comes out of storage Let me know what mufflers you go with.
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01-22-2012, 10:04 AM	#5
E92TTKING Colonel 251 Rep 2,251 Posts Drives: e92 Join Date: Oct 2009 Location: Merica iTrader: (10)	2.5
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01-22-2012, 10:27 AM	#6
cn555ic 441 Rep 18,331 Posts Drives: 335i Join Date: Jun 2007 Location: US iTrader: (6)	2.25
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01-22-2012, 11:28 AM	#7
colt9987 Lieutenant 45 Rep 437 Posts Drives: 135i Join Date: Sep 2009 Location: dallas iTrader: (2)	hmmmm so 2.5 or 2.25???? and is it center/center center/offset or offset/offset? thanks for any help!
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01-22-2012, 01:38 PM	#9
colt9987 Lieutenant 45 Rep 437 Posts Drives: 135i Join Date: Sep 2009 Location: dallas iTrader: (2)	Al __________________ 2011 135i
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01-22-2012, 01:39 PM	#10
colt9987 Lieutenant 45 Rep 437 Posts Drives: 135i Join Date: Sep 2009 Location: dallas iTrader: (2)	Alright so I will need the 2.25 inlet and outlet universal muffler.. But will I need center/center center/offset or offset/offset? Any idea? __________________ 2011 135i
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01-22-2012, 01:45 PM	#11
Brey335i Banned 112 Rep 4,771 Posts Drives: e46 ///M3 Join Date: Oct 2009 Location: Austin, TX iTrader: (11)	I had universal mufflers at one point. You need offset / offset. The stock exhaust comes close together around the differential and then splits apart again to go out to the tips. So you need the inlets as far in to the middle as possible and the outlets as far out as possible.
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01-23-2012, 08:53 AM	#13
Zasquatch Captain 36 Rep 708 Posts Drives: '07 BMW 335i Join Date: Sep 2010 Location: CT iTrader: (15) Garage List 2007 BMW 335i [0.00]	Stock piping is 60 mm OD.
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01-24-2012, 05:49 PM	#14
subieworx Lieutenant 30 Rep 468 Posts Drives: 07 335 Join Date: Jun 2010 Location: Ohio iTrader: (1)	Mine are straight through magnaflows. 2.5" inlet and outlet that I adapted to the stock piping at the rear diff.
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