Reviewed By Stan R (Channelview, TX) Reviewed for a
—1/23/2012 5:57 AM
Plugged it in and it did the tuning. Noticed change in power and mpg immediately.
Reviewed By Terry L (Killen, AL) Reviewed for a
—2/12/2016 8:34 PM
Put 3.73 gears in 2010 Siverado. Dealer could not calibrate speedometer. Did myself with Hypertech Speedometer Calibrator. Well pleased.