i mint run sorry in a 2001 7.3 without chip and does it give better miles to the gallon
:whs:It will idle rough, and be really touchy on light throttle, but it will run fine. Until you get tuning, and kinda work the perma grin off a bit, mileage will suck. Usually takes a couple thousand miles to get your right foot to chill out. The throttle response is to fun at first.