Cold Air Intake or CatBack Exhaust?

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11-29-2007, 07:59 PM

#11

dloudy

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Join Date: Sep 2007

Location: Bluff City, Tennessee...near Bristol

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Mine's the 5.4, and the best mileage I've gotten is 15 mpg going downhill with a tailwind. Of course, I haven't done the CAI or tune yet either......

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12-01-2007, 11:36 AM

#12

insp32

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Join Date: Nov 2007

Location: Ks

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Thanks for the feed back on the CAI. I'll be looking for one under my tree this year.

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