Reviewed By Sorin C (Hoffman Estates, IL) Reviewed for a 2011 Cadillac Escalade —5/11/2008 9:28 AM
It does what it claims ? It has an 87 tune as well, as well as the high octane. all of the options are customizable and over-ridable. and i can say it improves mpgs, make the escaldade smoother...yay.