kenny...you wont be dissapointed when you order a gryphon. besides all the info. it provides, you can customize gear ratio/tire size if you were to ever go bigger than stock tires, this corrects speedo/odo. and YES you can improve mileage...by abt 1 mpg, 18 is pretty good though. you might be getting 20-21mpg after gotts/exhaust/tuner
with a cat back exhaust and gotts mod i would say you will need at least 2 custom tunes(perfect for the buy one/get one deal) 87perf/economy and 93perf. and maybe do all 3 to take full advantage of your exhaust.
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1999 f150 4x4 - Flowmaster 40 series exhaust - 33" BFG M/T km2's - PHP Gryphon Programmer - RotorPros Slotted rotors - Mag-Hytec Diff Cvr
Let's go Wheelin!!!
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Thu, March 25th, 2010, 12:27 PM
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