Reviewed By Paul C (Williamstown, NJ) Reviewed for a 2010 Ford Expedition —12/29/2014 12:15 PM
I'm using the 87 tune. It has a little more power and shifts better. Gas mileage is around the same or a little bit worse. It was pretty easy to install.
Reviewed By Curtis C (Fitchburg, MA) Reviewed for a 2006 Ford Expedition —5/18/2013 3:12 PM
Bought this module after I messed up the gas/air ratio of my Expedition using one those g force chips. It immediately ran smoother after installation. Only took 15 minutes to install. Gas mileage improved. Definitely need to use either Shell or ExxonMobil premium gas. Used lower grades and generic fuels didn't run as smooth. Very happy with this purchase. Auto anything was great with customer service.