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Old 03-16-2006, 11:22 PM   #1
Scooby Newbie
Member#: 59779
Join Date: Apr 2004
Chapter/Region: NESIC
Location: North Andover, Massachusetts
2004 STi
WR Blue. Sold it. Miss it

Default Cobb Stage 1/2 and Mass Emissions

Anyone tried to pass Massachusetts emissions with a Cobb AccessPORT at Stage 1? How about Stage 2? I have an '04 STi at Stage 1, about to go Stage 2 and don't know if I'll need to reflash the ECU to pass for the Stage 1 and don't relish having to pull the turboback and reflash from Stage 2 in the future. Thanks.
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Old 03-17-2006, 09:34 AM   #2
Scooby Specialist
Member#: 57396
Join Date: Mar 2004
Chapter/Region: NESIC
Location: Kingston, MA
2013 BRZ


As far as I know, Stage 1 is no problem, since you don't change your exhaust. Stage 2 can bring problems if you go entirely catless, since that is technically illegal. But, Stage 2 w/cats shouldn't have any problems.
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Old 03-17-2006, 12:37 PM   #3
Scooby Specialist
Member#: 70366
Join Date: Sep 2004
Chapter/Region: NESIC
Location: Greenfield, MA
2009 WRX Hatch (DGM)
1998 Legacy GT (Black)


Catless just fails visual though right? As long as as they don't notice and it passes the OBD-II scan, you'll be ok.

The problem is, a turbo-back will be too loud, and you'll fail for that instead. Emissions should be fine though. I'm hoping to test drive a stage 2 soon, so I'll bring my OBD-II scanner and see if you should be ok.
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Old 03-17-2006, 12:40 PM   #4
Scooby Specialist
Member#: 58323
Join Date: Mar 2004
Chapter/Region: NESIC

ive passed w/ both...

punched out center cat. visual looks ok and comes up clean on OBD scan...now on ECUTek and get the same.
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Old 03-17-2006, 02:24 PM   #5
Scooby Newbie
Member#: 32566
Join Date: Feb 2003
Chapter/Region: NESIC
Location: Ashland, MA
1999 911 C2
XBL GT: Fenrick


I passed w/o problems running Cobb Stg 2 map, Cobb catted dp, and SPT exhaust.

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Old 03-18-2006, 02:01 AM   #6
Scooby Newbie
Member#: 85796
Join Date: Apr 2005
Chapter/Region: NESIC
Location: Uxbridge, MA
2005 WRX


i am runing the vf-34 map and i passed with a full 3in turbo back.
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Old 03-18-2006, 04:12 PM   #7
Scooby Specialist
Member#: 63977
Join Date: Jun 2004
Chapter/Region: NESIC
Location: Mass
2005 STi


it really depends on the shop when it comes to the sound but as long as it's resonable and you have a cat(for visual) and a good tune you shouldn't have a problem
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