Does anybody have the Granatelli mileage miser or have you seen magazine articals about its performance what do you think? I already have exhaust and air intake upgrades. 05 diesel. This unit is said to give 50hp and 150 tq. Not to crazy but a little more power to tow.

 

I am not a fan of granatelli, I had some problems a few years ago with a few dozen MAFs and customer tuners hated them. I believe they have improved lately, but I would still go superchips, sniper or hypertech.