02-10-2007, 10:11 PM
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Hummer Guru
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Join Date: Dec 2005
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Posts: 5,485
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Re: Great results from PCM for Less tuning . . .
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Originally Posted by JWSchmidt3
I doubt the exhaust does much. The intake is probably 75% of the intake/exhaust combo gains. The shifts and air fuel table adjustments are the magic here.
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I think a lot of people will disagree with you on this one. Air iintake on a H-3 is already COLD AIR. Theres lots of posts about particle size and oil that gets by on the aftermarket set ups...
RYD
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