I guess Im more confused after reading a ton of options. So I mostly pull with this truck, no hot rod just hauling hay, tractors and equip. Eng. has New 50hp DAP injectors and I am ok with the power of the injectors and the HO motor. Really looking for mpg, a little hp would be nice too. So do they have a tune like this I guess the real question Im asking is what do I need? Thanks

Quadzilla first off. Then makes sure you have a good final ratio between 3.55 to 3.73 after tires. Then get ahold of me and I'll build you a good economy tune.