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i got a 2002 quad cab 3.9L v6 and im looking to get a tuner. i need more horsepower and some better mileage wouldnt hurt either. i need to be able to change the tire size as well. just wondering what would be the best one to get.
 

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You might try changing the timing chain to a roller chain.I have found the standard chain both factory and aftermarket have a lot of play in them which cause wide swings in valve and ignition timing.
 

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I had a 3815 in my kota and I run the same programmer in my Ram w/ a cai, and cat-back exhaust w/ the programmer on my 02 4.7 I saw about 1-1.5 mpg gain in 91 performance and a very noticieable difference in power
 

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After doing a bit of research, I've pulled the trigger on a SCT tuner. It should be here next week.:)
 

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awesome! you wont be disappointed, the 93 tune is pretty nice!
 

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awesome! you wont be disappointed, the 93 tune is pretty nice!
Thanks, Jerry. The guy I bought it from is from Cary, NC. He does tuning for DS and SCT tuners. I got it with the Stage 1 unlimited tuning. He'll modify the tune to match my mods for as long as I own the truck which will come in handy when the day comes that I decide to rebuild or replace the engine (hopefully no time soon).
 
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