Has anyone ever used the Big G mileage miser module by Granatelli motor sports ? I'm not looking for more power, but the extra 3 mpg would be nice. I would think my stock auto trans would handle the 50hp & 150 lbs. ft. of torque. The unit sells for 299. 99 and if works as advertised would pay for itself fairly quick. Installing on a '05 2500QC 4x4.
Thanks
Thanks