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  1. #21
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    Default Re: Sat for a couple months. Now multi-codes pending.

    Gotcha. Suggestions on a replacement? I'm really green on these cars. I got my first good look at the U bend and understand the need to replace it. Don't want to spend dumb money on the car since the AC won't work.
    I've got two engines that the cat was sheared off, so those would have a flex/flange that could be welded on to mine? Also, we don't have emissions testing. Not that I want to dirty the air, but seems I read you can run one O2?

  2. #22
    Killa Bee Scottydoggs's Avatar
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    Default Re: Sat for a couple months. Now multi-codes pending.

    depends on the year car you have. i fits 01-03 you'll have a cel and over fueling issues with out the cat.

    a 97-00 you could still run the rear o2 and no cat and be ok pretty much.

    98 Buick Regal GS, F body brakes, Caddy STS wheels, tinted tails L36 bottom end, lightly ported heads, 1.95 roller rockers, headers, 3.0, FSIC, 42 lb injectors, a BrandonHall rebuilt trans, DHP tuned by me. https://goo.gl/gpV5kW

  3. #23
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    Default Re: Sat for a couple months. Now multi-codes pending.

    It's a 2000.

  4. #24
    Killa Bee Scottydoggs's Avatar
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    Default Re: Sat for a couple months. Now multi-codes pending.

    http://www.ebay.com/itm/2-5-Stainles...3D171049389552 this would work.

    or you could go with a 3 inch. http://www.ebay.com/itm/3-Stainless-...3D111085791954

    speed daddy sells these too, but i cant seem to find it right now. might be cheaper.

    98 Buick Regal GS, F body brakes, Caddy STS wheels, tinted tails L36 bottom end, lightly ported heads, 1.95 roller rockers, headers, 3.0, FSIC, 42 lb injectors, a BrandonHall rebuilt trans, DHP tuned by me. https://goo.gl/gpV5kW

  5. #25
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    Default Re: Sat for a couple months. Now multi-codes pending.

    Looks like my fix!
    Stock 2000 GTP. No mods.

  6. #26
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    Default Re: Sat for a couple months. Now multi-codes pending.

    3" isn't much more money, if it makes a performance difference.
    Stock 2000 GTP. No mods.

  7. #27
    Killa Bee Scottydoggs's Avatar
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    Default Re: Sat for a couple months. Now multi-codes pending.

    3 is better then 2.5. if you had kr it might be gone with it. that u bend is a choke point. just removing that helps, so a larger pipe will be better.

    be best to buy a new rear o2 sensor too, the old one will put up a damn good fight, and likely not come out. iirc them zzp dp's moved the o2 bung further away and you need a extension harness too.

    98 Buick Regal GS, F body brakes, Caddy STS wheels, tinted tails L36 bottom end, lightly ported heads, 1.95 roller rockers, headers, 3.0, FSIC, 42 lb injectors, a BrandonHall rebuilt trans, DHP tuned by me. https://goo.gl/gpV5kW

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