Mercury Mountaineer Hypertech Performance Chips & Programmers

Reviewed By josh m (Reading, PA) Reviewed for a 2008 Mercury Mountaineer —1/10/2012 8:18 PM

Improved milage but when I had to go back to stock the milage stayed the same . Point is I am not sure if it did anthing . The one thing I will say is it keeps trans in gear loanger before shifting . Overall 3 stars .

Reviewed By Alijah L (WATERTOWN, NY) Reviewed for a 2013 Chevy Silverado —7/20/2017 2:56 AM

It was well worth the money, I get way better gas mileage.

Reviewed By Hunter B (LEXINGTON, KY) Reviewed for a 2015 Ford F-350 —7/4/2017 9:30 AM

Did exactly what I wanted to do, now my Speedo and miles are correct