Reviewed By Stan R (Channelview, TX) Reviewed for a 1996 GMC Suburban —1/23/2012 5:57 AM
Plugged it in and it did the tuning. Noticed change in power and mpg immediately.
Reviewed By SHAWN S (Saint Augustine, FL) Reviewed for a 2015 Toyota Tundra —1/15/2017 6:15 PM
Awesome product!!! Great step by step instructions. Had 0 problems with the installation, it took about 45 minutes from start to finish. I would recommend you measure your tire to get the exact size. I upgraded to a 22in wheel with 35s and programmed 35s first and it was still off 2 MPH. Once I measured and saw that it was really a 34, I programmed that in and it was perfect. Much smoother shifting too. I also noticed a 2mpg gain too!!! This is a must if you have a lift Tundra with 35s or larger