Reviewed By Johnnie A (Manchester, MO) Reviewed for a 2001 Ford Excursion —6/27/2009 4:31 AM
This Cortex is great! I installed it on my 2002 F350 7.3 and could tell it shifted different and was saving me some diesel. I love it that you can download the latest program. I use it on my diesel for weekend four wheeling and then return it to stock and use it on my Mustang during the week.