Reviewed By John L (Lakeland, FL) Reviewed for a 2011 Ford Mustang —6/15/2009 8:24 PM
This unit is invisible and corrected the problem with 35" tires and 4.56 gears. Easy installation, and did exactly what it said it would do. Left my dash cover off and drove around with my laptop and got the speedometer right on the money by tweaking the numbers. Nice to have things correct and can't even see it.