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  1. 05-28-2006, 02:22 PM #1
    drock608
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    So how restrictive are cats?

    I have the stock system on a 98 Z28 and i was wondering if taking the cats off would net me any significant hp? It seems like a clog in a pipe to me, so i would imagine it would be a decent gain...let me know
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  2. 05-28-2006, 02:43 PM #2
    ss~zoso~ss
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  3. 05-28-2006, 02:45 PM #3
    drock608
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    wheel or crank hp? if thats wheel, its damn well worth it.
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  4. 05-28-2006, 03:03 PM #4
    GottaHaveLS1
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    probably 2 or 3 rwhp
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  5. 05-28-2006, 03:52 PM #5
    silverTA2002
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    Quote Originally Posted by drock608
    wheel or crank hp? if thats wheel, its damn well worth it.
    It depends on your car. You may gain 5hp. You may not.

    You'll NEVER feel or notice 5hp.

    The only way you'd want to get rid of the cats if if you want the exhaust to be loud and raw all the time, and you don't mind the bad exhaust smell, and cackle sound the exhuast will make.

    Also, you'll need a way to delete the codes your computer will trigger (tuner) or buy o2 sims for the rear sensors.

    Best bet, just buy an electronic cutout. The exhaust will be as loud as you want, when you want. And as free flowing as possible. Plus it's cheap!
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