Did the sniper tune, should have done this along time ago! No major mods to my truck (magnaflow muffler, k&n panel) anyway couple of issues. I have what sounds like belt squeal at WOT after the truck shifts, its a highpitched noise and I will try to get a Youtube video tomorrow and make it a lot shorter than my last one! Another issue is I hear what sounds like pinging type noises when the truck is accelerating, tried to do the recon datalogging but that didnt work and will ask sniper tuning about that. Seems like a really good product if you have the time to get to know the program.