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  • #1

    High-flow Cat

    Ok, before I put on my new I-pipe I want to decide whether or not I want to put on a high-flow cat as well. If I get an OBD II compatible high-flow cat, will I still get the SES light that most of you with high-flows on the 98+ cars post about? I know many have said that it usually doesn't happen right away, like maybe 3 or 4 months down the road. I don't recall ever seeing anyone with a 96 or 97 post about a problem with a high-flow cat, did something in the computer change in 98 or do not many 96 and 97 owners on here have high-flows? I would like a high-flow cat to help my exhaust tone, but I don't want the SES light, and I am not going to use sims, I want to use the o2 sensors.

    I have a 96 by the way. Stock except for the soon to come complete cat-back.
    1996 Polo Green Metallic Camaro:<br />SLP CAI, Carsound/Magnaflow 3\" in/out cat, Flowmaster 2.5\" cat-back... sounds great
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  • #2
    I have a 97 and have had a hi-flow cat on for just about 2 months now. No problems YET. Ieven have a bad o2 sensor (replacing it this weekend) right now and I still have not gotten an SES light.

    BTW, headers will help your tone a lot. I may be able to dig up a sound clip of mine if you want...
    Patrick<br />Sick Sixx Member<br /><b>97 Mystic Teal Camaro</b><br />425RWHP @14PSI<br />Old setup:<br />330RWHP @7PSI 13.9 @ 106.6 <a href=\"http://www.fullthrottlev6.com/forums/vbgarage.php?do=view&id=4\" target=\"_blank\">Mods</a>

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    • #3
      What is your setup in the sound clip? Right now I just have a Dynomax super turbo muffler (2.5" inlet). I am going to put on a Z-28 I-pipe, and maybe a 3" in/out high-flow cat. Let me know if you run into trouble. I will be making up my mind by the end of the month whether or not I want to put on the high-flow cat. If you run into trouble, let me know how you solved it in case it happens to me, and if I run into trouble then I will probably post about it and post how I fixed it.

      By the way, what do you have for a cat, I am thinking about Carsound/Magnaflow because I don't think the Catco's are OBD II compatible.
      1996 Polo Green Metallic Camaro:<br />SLP CAI, Carsound/Magnaflow 3\" in/out cat, Flowmaster 2.5\" cat-back... sounds great

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      • #4
        I have whats in my sig (no muffler currently, system ends where the I-pipe should be) and do not have a SES light, I did for awhile but it went away after I trightened everything down and made sure my cutout sealed.
        00\' firebird v6 5spd<br />201rwhp ---- 230 rwtq<br />\"Everyday I grow stronger...and further from you.\"<br />WARNING: Do not take any of my comments seriously unless they are technical in nature and then only at your own risk

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        • #5
          how long is the stock cat? 16" right? I don't know where I am getting that number from but it sounds familar.
          1996 Polo Green Metallic Camaro:<br />SLP CAI, Carsound/Magnaflow 3\" in/out cat, Flowmaster 2.5\" cat-back... sounds great

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