35"s
well i have a procomp 4" which is more a 4"/3" with 315/70/17 mt mtz's on an X. with the stock tires and computer was set for 30.5 tires i was getting 16.5- 18.0 on the comp. when i threw the lift on i was getting low 11's. i had the comp flashed for 32's and went up to 12.6. i am averaging 11.9 -13.0 about 50/50 city and hwy. kind of hilly and i drive 75 -80 on the hwy. if i drove slower i am sure i would get better mpg. this is also flashed for 32's so not the actual.


