you have to send the PCM back to DC and they will code it to your VIN. They are VIN specific. Dan Cragin is a professional and a great guy. Im across the state from DC and they quarterbacked my build and have stood behind all of the products and advice that I have gotten from them. Before I made contact with them I was VERY unhappy with my Paxton'd QC (570 RWHP) and now after many thousands of dollars and alot of Dan's time and efforts ......were happy!
Last dyno 868rwhp with alot still to improve with the tune. All said and done Im confident my truck will hit 1000rwhp on Boost alone....if not I still have the 250 shot