If you plan on changing to a larger exhaust and a cold air intake i would go with one of the larger programmers like banks or bully dog, but if you arr running stock intake and exhaust i would look into a superchips programmer.

 

I was looking at Superchips it might work because I found a dealer close to me. How much would fule mileage increase with the tuner from Superchips. Thanks for the input.

 

I will let you know after this weekend. i got mine in today and i have a 1500 mile round trip.

 

three trucks ago(lol) my had had an 02 with the 7.3 in it, 4" lift with some 37" bfg muds.

He had stock intake and exhaust and ran the a BD chip. I thought it was pretty good, made a hellofa difference.

Now he has an 04 6.0 with an Edge, intake and exhaust and it would keep up with my last truck and get like 20 mpg hw. I was running a low low 15 and I could have gotten a high 14, but I didnt have the time at the track.

 

well on the first leg of the trip i averaging 80-85mph for 850 miles i got 17.5mpg

 

How much is 17.5mpg over stock mpg?
Are you running the superchips programmer?

 

I am not sure what the stock mpg is, I put the superchips on it with about 1300 miles on it and i have over 3000 now with the miles i put on i get in the mid 17s running 80+ on the highway. I am happy with the fuel milage but i am more impressed with the power it gave me. I was talking to a few friends over the weekend that have the 7.3 and they got the best fuel milage out of the smallest Bully Dog chip but they also said ya have to stay out of the turbo as much as you can.