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Emssions Y Pipe...

This is a discussion on Emssions Y Pipe... within the External Engine forums, part of the LSx Technical Help Section category; Is there a emissions legal y-pipe that still uses stock cats aside from the SLP one? This is the one ...

  1. #1
    Member AiDRocks's Avatar
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    Emssions Y Pipe...

    Is there a emissions legal y-pipe that still uses stock cats aside from the SLP one? This is the one I saw: http://www.slponline.com/view_product.asp?P=31035

    Any other suggestions would be awesome. Thanks in advance.

  2. #2
    Junior Member Arioch's Avatar
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    Trying to build a emissions legal set-up myself

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    I went to Playboy Mansion FantaZGuy28's Avatar
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    Just take it to an exhaust shop and have them make you a custom one. Anything after the cats will be able to pass smog. The thing about your car aidrocks is that for some reason GM was being retarted that year and had one cat welded on to the manifold and the other bolted on so its not as easy to swap out cats or doing a Ypipe swap.

  4. #4
    Senior Member INMY01TA's Avatar
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    Random Tech makes a y pipe that has new cats but in the stock location.
    http://www.thunderracing.com/catalog...&vid=3&pcid=99 (scroll down)
    Waste of money tho. Won't change the sound or performance much if any. That SLP one that bolts up after the cats and just eliminates the flattened part is useless too.

  5. #5
    Member AiDRocks's Avatar
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    Should I just get a cut-out instead?

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    Senior Member INMY01TA's Avatar
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    Cut out is a great mod. If you dont want headers I'd get an off road Y pipe and just swap it every other year for emissions and do the cut out in the I pipe before the axel.

  7. #7
    Member AiDRocks's Avatar
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    Quote Originally Posted by INMY01TA View Post
    Cut out is a great mod. If you dont want headers I'd get an off road Y pipe and just swap it every other year for emissions and do the cut out in the I pipe before the axel.
    Changing the ypipe every other year is gonna be a PITA.

  8. #8
    Senior Member JonB's Avatar
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    Borla makes one from the cats back, its similar to the slp. I have it on my car and like it, I picked it up used on the forum here a few years back for $100.
    05 PBM GTO
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    Sold 01 z28

  9. #9
    Junior Member Arioch's Avatar
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    Changing the ypipe every other year is gonna be a PITA.


    but its looking like the only way to do it and get around emissions

  10. #10
    Senior Member INMY01TA's Avatar
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    Quote Originally Posted by AiDRocks View Post
    Changing the ypipe every other year is gonna be a PITA.
    Two hours for two years of fun?? I would, but that's just me.

  11. #11
    Junior Member Arioch's Avatar
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    Borla makes one from the cats back, its similar to the slp. I have it on my car and like it, I picked it up used on the forum here a few years back for $100.
    did it change your sound at all? feel any difference from it?

  12. #12
    Senior Member JonB's Avatar
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    Quote Originally Posted by Arioch View Post
    did it change your sound at all? feel any difference from it?
    The was a very slight differance in sound. I did not feel any gain from it but I had future plans for it. Which was putting mac headers on and 2.5in cats which all went into the borla y-pipe. It all went toghter very well and tucked up very nicely.

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