Reviewed By Garry G (Arnold, MO) Reviewed for a 2003 Ford F-150 —2/14/2009 10:52 AM
Very easy to use. Some performance settings require 91 octane. With maximum setting on Cortex, new flowmaster exhaust and cold air intake, my trucks performance is amazing. Gas milage is about the same but I'm sure I'd see a significant improvement if I used the fuel economy setting on the Cortex. Superchips made a great product.