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pre-cats?

Old 09-06-2000, 10:00 AM
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i'm thinking of getting the y-pipe. cattman mentions 95-99 models as having pre-cats. do our 2000s have pre-cats? if so should i be concerned with emissions? and if not, are the gains in hp and torque as significant?
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Old 09-06-2000, 02:36 PM
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pre-cats

yes the 2k has the pre-cats. I believe that there are two that are removed by the y-pipe. My understanding is that the effect is not great enough to cause you an emission problem. It may depend on your state/county, whether it tests and how stringent the tests are. By the way, I have a Cattman y but have not yet installed it. From my research, it is superior to the Stillen and Cattman says it doesn't buzz like Stillens. We will see.
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Old 09-08-2000, 05:38 PM
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Re: pre-cats

Originally posted by Max_Gator
yes the 2k has the pre-cats. I believe that there are two that are removed by the y-pipe. My understanding is that the effect is not great enough to cause you an emission problem. It may depend on your state/county, whether it tests and how stringent the tests are. By the way, I have a Cattman y but have not yet installed it. From my research, it is superior to the Stillen and Cattman says it doesn't buzz like Stillens. We will see.
I have the Stillen Y Pipe (New Generation) and it's not that noisy, you'll hear a nice russhhh! from 2-6000 rpm.
The CAI is much louder.
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