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Old 06-19-2002, 03:16 AM   #1
rex rocket
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Member#: 18055
Join Date: Apr 2002
Location: IL
Vehicle:
2002 wrx
silver

Exclamation turbo-back & up-pipe = CEL

I was wondering if anyone out there has the mrt turbo-back exhuast and up-pipe or something similar. Every once and a while my car through's a p420 code for cat unefficency. Is this common and is their easy fix's out their.
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Old 06-19-2002, 08:56 AM   #2
Mike Kress
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Member#: 9291
Join Date: Aug 2001
Location: Washington, WV
Vehicle:
2002 WRX
almost yellow

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I ran the same set-up as you for about 7000 miles and had one lowcat cel. There are a couple of fixes for this and I would do a search for cel's and figure out what would be best for you. I'm running the Stromung catless down pipe now with the third cat and have a cel all the time. Don't know if I'll go completely catless and get a fix or put the stock downpipe back on. Mike.
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Old 06-19-2002, 01:51 PM   #3
rex rocket
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2002 wrx
silver

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Thanks Mike
i have a cat in the mrt down-pipe. It just runs so nice without the factory up-pipe. There's know way the stocker is going back on. There is a resistor mod. But I would feel better with a easier plug in fix

-jason
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