Wheat77 - 5/3/2014 19:05
phonyfarmer - 5/3/2014 19:01
Have 2013 FX4-20" wheels and tires . Put on a programmer from Levernois Motorsports Dearborn MI. Have it set on 93 octane performance and will walk off and leave my wife's 6.2 Denali. Supposed to be 435 HP and has averaged 17.4 the last 6xxx miles. Will bark tires shifting from 1st to 2nd!
Phony, that is too good, you must have your numbers turned around, you meant 14.7 MPG, otherwise,
I call BS.