Good tuner for the money
Reviewed By Michael W (FORT WAYNE, IN) Reviewed for a 2003 Ford Excursion —3/5/2014 9:49 AM
Good for the price. Performance program set theft mode when installed, but quick call to excellent tech support got me going! Power gains are definitely noticeable with performance and light tow programs as are improved shifts. Mileage gains with normal driving are questionable at this point. However in all fairness I have yet to upgrade exhaust (a must when adding fuel from tuners if you want longevity and top performance from tuners) and compressor wheel (to eliminate surge). Would buy again.
Easy and versital
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.
Did exactly what it claimed
Reviewed By Kim H (BENSENVILLE, IL) Reviewed for a 2002 Ford Excursion —1/22/2013 1:15 PM
Torque increase, horse power increase, mpg went from about 9 city to almost 13. I strongly recommend an intake kit, throttle body spacer, and exhaust system as well as the tuner. All in all- my 7000lb truck will easily push through whatever I put it in, significantly quicker- while making my stop for gas less frequent. Noticeable shifts now, chirping tires,... It's exactly what I was looking for.