lt headers question

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Oct 31, 2004 | 12:08 AM

firechicken2k

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From: Manhattan, NY

lt headers question

just a quick couple of questions..

any lt headers will make the car fail emissions, from what i have read.. is that true?
why does it make it fail emissions, if so?

and is there any way to have lt headers but pass emissions?
i see all these cars here having lt's, being daily driven...

Oct 31, 2004 | 12:09 AM

Casperws6

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From: Cali

if you live in cali, like myself, lt headers will make you fail emissions because it will fail the visual. it is illegal to relate the cats and lt's do just that.

Oct 31, 2004 | 12:11 AM

Casperws6

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From: Cali

to answer ur last question, you can pass emissions if your clean out of the tail pipe if the smog tech "over looks" the lt's. or simply swap back to manifolds every two years. good luck

Oct 31, 2004 | 12:19 AM

firechicken2k

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From: Manhattan, NY

i live in NJ now.. but last time i had emissions testing, it was in OH. i didnt notice them looking at anything, in OH.. just ODBII testing, i think

Nov 1, 2004 | 02:54 AM

emanneercstahp

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From: Ontario, California

Quote:

Originally Posted by white00ws6

if you live in cali, like myself, lt headers will make you fail emissions because it will fail the visual. it is illegal to relate the cats and lt's do just that.

what do u mean by relate?

Nov 1, 2004 | 02:58 AM

calongo_SS

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From: Victoria, TX

Quote:

Originally Posted by emanneercstahp

what do u mean by relate?

i believe he means relocate. you can't move the cats from their stock position.

Nov 1, 2004 | 08:05 AM

SLPSS01

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From: Warrenville, IL.

depends on where you live how they test. You can have LT's and still pass the sniffer or OBDII testing. The headers themselves won't cause you to fail, other than a visual, it's the removal of the cats. Some places test OBDII cars (after 96) by connecting to the ALDL to check for any codes. You can actually have no cats and still pass this test using O2 sims. Your other option is to get LT's and a Y-pipe with cats like Texas Speed sells. Provided you don't live in CA you have a few options.