well i have tried alot of different chips and tuners on my truck.most were either to much stress on the drive train or to little power to make a difference.i had an mp8 on my dodge truck and since i am using the c5 from va i no longer needed it so i sent it back t dennis and had him reflash it to fit my 6.0.i tell you i am the happiest with this chip of aything that i have ever put on a 6.0.i dont race or hot rod this truck i drive ,work and tow heavy most every day.i have tried the edge,sct tuned by innovative,the bdog,the diablo,quadzilla and a superchip.all were nice products but not exactly what i was looking for.this mp8 provides decent towing power with out a lot of banging and slamming in the tranny.i run it on about 60-65 percent and my fuel economy has went up 1.5 gallons and my egts never go above 900 post turbo.now i live in the flat lands so mountains could bring some more heat into play.if some one is looking for a chip wit a little more umph and mileage and not trying to blow a bunch of smoke and bang tranny shifts the mp8 is worth trying....