Superchips Tuners
#1
#3
Not sure what the difference in performance is between the 4.7 and the 5.7 with the flashpaq! But I have the 5.7 and have not cons! The pros are speedo adjustment, better mpg, better troque, better top end and better towing ability! I had the hyper tech and I absolutely hated it! It would not adjust the speedo and had NO noticable power gains or mpg! But if the flashpaq has the same gains and the 5.7 then I would say go for it!