I have said many times on TDP that Kennedy has the best LB7 tune out there. GM would have been well advised to license his tune, and put it on every 2001-2004.5 truck that rolled out the doors. Watch the color of your crankcase oil, over the next few changes. By change two or three, you start to see less soot, and the oil might even stay honey colored awhile, instead of instantly black.

My 2002 K2500 was still running smooth and had honey colored oil at 285K when I sold it, with JK's tune intact. It was so right for that truck, I couldn't bear to put the old factory tune in it!!!

Have fun...happy hauling. Q: Did you buy his boost-valve to bring up boost slightly for the increased fuel rate?