Need help with resonators.

BMWI6 · 02-28-2008, 03:59 PM

hi guys, i want to remove the resonators from my 335i sedan and would like some guidance on how to do it or where i can do it here in miami. I would aprreciate a descriptive response as i am unfamiliar with this procedure. Also do i need to cut my exhausts or do something in the likes of it? thanks

Brunotheboxer · 02-28-2008, 04:10 PM

what ever you do, dont cut the green wire.

BoostedBMW · 02-28-2008, 04:17 PM

I'm assuming that you are referring to the secondary cats, right? There is really no way to remove them unless you either cut them out and replace that section with straight piping or you can just go with a catback exhaust that replaces them. A few companies offer midpipes as well that replace them, but they are all larger than the stock exhaust piping.

radgator1 · 02-28-2008, 04:42 PM

since you have an e90 you have 2 secondary cats and a resonator. If you want to remove these without buying an exhaust sytem you need to cut them out. Just find a muffler shop in your area that seems to be reputable and tell them what you want to do. They will be able to guide you. It shouldn't cost more than a couple hundred bucks or less. Here's a thread on the subject:

http://www.e90post.com/forums/showthread.php?t=54126

02-28-2008, 03:59 PM	#1
BMWI6 Major 106 Rep 1,337 Posts Drives: 335is Join Date: Feb 2008 Location: Miami, Fl iTrader: (2)	Need help with resonators. hi guys, i want to remove the resonators from my 335i sedan and would like some guidance on how to do it or where i can do it here in miami. I would aprreciate a descriptive response as i am unfamiliar with this procedure. Also do i need to cut my exhausts or do something in the likes of it? thanks __________________ If everything seems under control, then you aren't going fast enough"
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02-28-2008, 04:10 PM	#2
Brunotheboxer Colonel 405 Rep 2,984 Posts Drives: 2014 Shelby GT500. Join Date: Jan 2006 Location: Boston/Cape Cod iTrader: (0)	what ever you do, dont cut the green wire. __________________ "...I maybe drunk, but you're ugly, and I can sober up..."
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02-28-2008, 04:17 PM	#3
BoostedBMW Moderator 136 Rep 6,775 Posts Drives: TiAg E92 335 Join Date: Oct 2006 Location: Raleigh, NC iTrader: (14) Garage List 2003 S2000 [0.00]	I'm assuming that you are referring to the secondary cats, right? There is really no way to remove them unless you either cut them out and replace that section with straight piping or you can just go with a catback exhaust that replaces them. A few companies offer midpipes as well that replace them, but they are all larger than the stock exhaust piping. __________________ -Michael. Berlina Black S2000 CR is now in the garage l 19" Rial Daytona Race l KW V2 l Eisenhaus Race Exhaust l
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02-28-2008, 04:42 PM	#4
radgator1 Lieutenant Colonel 54 Rep 1,600 Posts Drives: e90 335i Join Date: Aug 2006 Location: SoCal iTrader: (4) Garage List 2007 e90 335i [0.00] 2007 e90 335i [0.00]	since you have an e90 you have 2 secondary cats and a resonator. If you want to remove these without buying an exhaust sytem you need to cut them out. Just find a muffler shop in your area that seems to be reputable and tell them what you want to do. They will be able to guide you. It shouldn't cost more than a couple hundred bucks or less. Here's a thread on the subject: http://www.e90post.com/forums/showthread.php?t=54126
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