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Long Tube Headers

This is a discussion on Long Tube Headers within the External Engine forums, part of the LSx Technical Help Section category; They are illegal because they move the cat, but fuck it. The difference is way worth it. Just slip a ...

  1. #21
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    They are illegal because they move the cat, but fuck it. The difference is way worth it. Just slip a few extra bucks to get it to pass.

  2. #22
    car enthusiast djvaly's Avatar
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    what is the difference in rwhp without the cats?

  3. #23
    Grand Imperial Wizard Sarge's Avatar
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    Retired Outlaw Sum Bitch

    Quote Originally Posted by NHRAMAN View Post
    Long tube and Mid's are ILLEGAL in Canada and the U.S. for any street car with emmissions systems.....You are correct..the second you move the cats you are altering the EMMISIONS SYSTEM...
    Nope.....
    This is easy in all 50 states.....and I've done it in three of the states....and yes it requires a "cool" certified state inspector/mechanic to make it work....
    They have an affadavit the inspector/mechanic must sign that states you ran over a big ass dog and tore up all your stock exhaust....the exhaust must be replaced....slapped on LT's/high flow cats and cat back exhaust....voila....your legal as hell...I have to carry this document in my glove box at all times....

  4. #24
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    Us lucky Virginians (northern part of the state at least) get to do emissions testing every 2 years, and state safety inspection every year. It's little more than a scam to make money for the service stations that perform the checks. Took the SS in and tried to get both done. EGR removed (LS6 manifold), AIR removed, codes edited out w/LS1edit. Station plugged in to OBDII connection and it passed.
    Guy was a real asshole. He saw the block-off plates for the AIR system. Since the emissions test is completely automated, he couldn't override the test results, so he failed my safety inspection because of the missing emissions equipment (WTF does emissions equipment have to do with safety?). He also failed me for non DOT-approved front lenses (aftermarket clear corners) and because the rear marker lenses had spray tint on them. What an asshole!!! He wrote on the rejection sticker what needed to be addressed, then slapped it on the windshield.
    I promptly peeled it off, threw it away, and had the safety inspection done elsewhere, where they didn't even open the hood.

  5. #25
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    just a quick question. when removing egr/air you dont need to block-off anything besides the intake manifold (ls1) if your headers have no air/egr hookups correct?
    MS4 Camshaft, Doulble Valvespring, Chrom Moly Hardened Push Rods, QTP LT Headers, 3" Custom Strait Pipes w/ Single Chamber Flowmasters Dumped,
    !AIR, !EGR, !CAGS

  6. #26
    car enthusiast djvaly's Avatar
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    hi guys...what is the difference in rwhp without the cats? 10rhwp? or what//
    thanks

  7. #27
    Senior Member INMY01TA's Avatar
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    Quote Originally Posted by mbrownin View Post
    Us lucky Virginians (northern part of the state at least) get to do emissions testing every 2 years, and state safety inspection every year. It's little more than a scam to make money for the service stations that perform the checks. Took the SS in and tried to get both done. EGR removed (LS6 manifold), AIR removed, codes edited out w/LS1edit. Station plugged in to OBDII connection and it passed.
    Guy was a real asshole. He saw the block-off plates for the AIR system. Since the emissions test is completely automated, he couldn't override the test results, so he failed my safety inspection because of the missing emissions equipment (WTF does emissions equipment have to do with safety?). He also failed me for non DOT-approved front lenses (aftermarket clear corners) and because the rear marker lenses had spray tint on them. What an asshole!!! He wrote on the rejection sticker what needed to be addressed, then slapped it on the windshield.
    I promptly peeled it off, threw it away, and had the safety inspection done elsewhere, where they didn't even open the hood.
    Wow! What an asshole.

  8. #28
    car enthusiast djvaly's Avatar
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    what an aszhole..

  9. #29
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    Quote Originally Posted by djvaly View Post
    what is the difference in rwhp without the cats?
    You honestly should gain any. I mean Stock new cats flow just fine, when they get clogged they will bog a bit. But new age cats arn't that bad... now back in the 70's.... that's a bit of a differnt tale.

  10. #30
    car enthusiast djvaly's Avatar
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    I see, they got the high flow cats now. good. Thanks!

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