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Car-Sound High Flow Cat, or Motostorm UDP

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Old 11-20-2007, 07:19 AM
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Car-Sound High Flow Cat, or Motostorm UDP

Hey guys, I have been researching this for the past week and I STILL havent been able to come to a conclusion. So I am asking for your advice. I have a 95 , AUTO, with a Place Racing CAI and a Warpspeed Y. And I need to know which would be the best MOD to do right now. And what kind of gains can I expect?
Its between a Motostorm UDP or a Car-Sound High Flow Cat. Any other suggestions will be taken into consideration. Thanks
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Old 11-20-2007, 07:24 AM
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Both are worthless mods and won't yield you anything. CPU, lightened flywheel or less rolling mass would be my choices.
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Old 11-20-2007, 07:29 AM
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For performance, go with the UDP. It made a noticeable difference on my 5spd.

I doubt the "high-flow" cat will do much, if anything, in terms of performance.

I have a test pipe, which would be even less restrictive than a high-flow cat, and I didn't notice a much of a difference at all. It might be worth 1 or 2 horsepower.

^^^HE is worthless. The heck with people that say a UDP does nothing. I can't speak for autos, but it DID make a difference on my 5spd.
oh and CPU? I think he means ECU...cuz this is a car

Last edited by mowgli29; 11-20-2007 at 07:33 AM.
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Old 11-20-2007, 07:31 AM
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What about an automatic?
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Old 11-20-2007, 07:35 AM
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I put the cosmo UDP on my auto and noticed a difference. Seems like it brought back the lower torque I seemed to have lost with my cai and exhaust. Its all speculative, had to say that as I didnt dyno and cetain people will jump onto what Im saying and dismiss it.
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Old 11-20-2007, 07:51 AM
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go with a b pipe if nothing else, won't help a whole bunch, but better than the other
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