cp-e Cat Back Exhaust vs. California Smog Test

Kicker8002 · 03-12-2009, 03:15 AM

Has anyone had any issues passing the emissions test with a Cat Back exhaust installed, specifically from cp-e. I'll be moving back to the Bay Area in the near future and don't want to install a cat back if I'm going to have to turn around and put in an axle-back just to pass the smog check.

bimmerboy · 03-16-2009, 01:49 PM

i don't think a cat-back would change the emissions, so you should be set. As long as you don't get in trouble for having an aftermarket exhaust..

jtsherri · 03-16-2009, 02:05 PM

I'm in a state that doesn't do emissions testing, so I'm FAR from an expert and would always recommend that you call and talk to the manufacture about these things first; however, that being said: given the fact that all emissions checks that car does on itself happen prior to the cat-back portion of the exhaust, I'd say you'll be just fine.

Kicker8002 · 03-16-2009, 11:32 PM

Thanks for the help. I'll be ordering my exhaust at the end of the month.

03-12-2009, 03:15 AM	#1
Kicker8002 Registered 0 Rep 3 Posts Drives: 2009 A/W 135i Join Date: Feb 2009 Location: Kaiserslautern, Germany iTrader: (0)	cp-e Cat Back Exhaust vs. California Smog Test Has anyone had any issues passing the emissions test with a Cat Back exhaust installed, specifically from cp-e. I'll be moving back to the Bay Area in the near future and don't want to install a cat back if I'm going to have to turn around and put in an axle-back just to pass the smog check.
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03-16-2009, 01:49 PM	#2
bimmerboy Captain 23 Rep 601 Posts Drives: 135i Join Date: Jan 2009 Location: Bay Area iTrader: (0)	i don't think a cat-back would change the emissions, so you should be set. As long as you don't get in trouble for having an aftermarket exhaust.. __________________ *--2009 BSM 135i--* -Manual, Sport Package, BMW Assist
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03-16-2009, 02:05 PM	#3
jtsherri Major 144 Rep 1,262 Posts Drives: TBD Join Date: Aug 2008 Location: Metro Detroit, MI iTrader: (14) Garage List 2008 135i [10.00]	I'm in a state that doesn't do emissions testing, so I'm FAR from an expert and would always recommend that you call and talk to the manufacture about these things first; however, that being said: given the fact that all emissions checks that car does on itself happen prior to the cat-back portion of the exhaust, I'd say you'll be just fine. __________________ -Jason My review(s): cp-e™ Cat Back Exhaust, cp-e™ SS 3" Downpipes, TPLSM3 Custom Fiberglass Subwoofer Enclosure, P3 BMW 135 Vent Integrated Digital Interface
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03-16-2009, 11:32 PM	#4
Kicker8002 Registered 0 Rep 3 Posts Drives: 2009 A/W 135i Join Date: Feb 2009 Location: Kaiserslautern, Germany iTrader: (0)	Thanks Thanks for the help. I'll be ordering my exhaust at the end of the month.
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