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Exhaust help! PLEASE HELP

This is a discussion on Exhaust help! PLEASE HELP within the Firebird / WS6 forums, part of the Vehicle Specific category; I was looking at buying a hooker true dual exhaust. It doesn't come with cats, so I would have to ...

  1. #1
    Junior Member Apueschel's Avatar
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    2002 Pontiac Trans Am

    Exhaust help! PLEASE HELP

    I was looking at buying a hooker true dual exhaust. It doesn't come with cats, so I would have to put them in before I get the car inspected again. How do you add cats for a true dual exhaust on a 2002 ws6 trans am? Has anyone done this?

  2. #2
    Super Moderator
    pajeff02's Avatar
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    Black & Blue
    '02 WS.6 / '07 Suburban

    Buy some high flow bullet cats and mount them as close to the collectors as you can by either welding them in or using high quality band clamps. Be careful of your clearances though as cats run very hot. (Total deja vu on answering this question...)

  3. #3
    Member speedyWS6's Avatar
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    2002 WS6 TA

    Quote Originally Posted by pajeff02 View Post
    (Total deja vu on answering this question...)
    Yep.... Maybe, Jeff, we were not clear enough last time on the other post!?

  4. #4
    Member DarrenWS6's Avatar
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    Silver Metallic
    2000 Trans Am WS6

    If you don't wish to run cats, perhaps you could have a modified Y pipe converted to an X pipe to have cats, and removable with just some socket wrenches and effort. Then you can reinstall your catless pipes in place.
    2000 Trans Am WS.6 M6

    SLP lid & bellow w/ K&N, GMMG catback w/ Corsa Clones, UMI SFC, UMI Adj. Panhard, UMI Adj. TQ arm w/ relocation kit, Eibach prokit, Bilstein HDs, Nitto NT555s, skip shift elim, whiteface overlays, 20% tint, matte black decal/overlays

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