Do not buy the Sniper system. When I was at DiscountPowerParts.com we ordered one in to play with. It sucked bad. I went to Disney last year in March, and they are not far from there. So I drove to Sniper, talked to Patrick the owner, dropped off our system to be updated when it was ready. They still have the junk! Dont waste your time or money. At DiscountPowerParts.com 99% of the tuners we sold for the 6.0L were custom tuned by Innovative Diesel. Its what I ran in my 05 F350 and loved. Get a custom tuned SCT and be done with it.