DP tuner is custom built for your truck I have it and stand by it, but I agree with the other guy get yourself some gauges first, when your throwing around 60-120HP with the chip you can burn your tranny or you'll do the same with your EGT's (Pyrometer) then AFE stage 2 air intake, 4" from the turbo back exhaust (Magnaflow), by doing that first your tuner will open the truck up more and better MPG.