test pipe, down pipe, catalytic converter...

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Dec 14, 2007 | 06:13 AM

s2k_bmich510

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Joined: Nov 2007

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From: duluth, ga

test pipe, down pipe, catalytic converter...

can anyone give me some info on what is test pipe, down pipe, and what do i need to replace it after i take out the catalytic converter on my S2k so that the emission test will pass...

Dec 14, 2007 | 07:44 AM

nightcrawler7188

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downpipe is part of a turbo setup. the test pipe is a straight, empty pipe that replaces the catalytic converter. once you take out the catalytic coverter you will not pass emissions.

Dec 14, 2007 | 08:25 AM

Tyraid2K

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From: Boise, Idaho

^^^
Too bad I passed emissions in my state (Idaho) with turbo and no cat, guy said it was reading funny but passed ok! He never looked under the hood or under the car.

Dec 14, 2007 | 08:29 AM

jettfiery

Joined: Feb 2007

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From: Austin,TX

I passed with a test pipe a while back since all they did was pull the engine code to make sure there wasn't a CEL.

Dec 14, 2007 | 09:09 AM

brainfart

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Same here. My last three cars have had no cat and I have had no problems passing emissions here in TN. As long as you don't have a CEL I think you would be okay.