Reviewed By william T (DESTREHAN, LA) Reviewed for a 2007 Chevy Silverado —12/15/2014 12:04 AM
Great product in proved mpg by 2 and better throttle response
Reviewed By Johnathan T (ANTON, TX) Reviewed for a 2007 Chevy Silverado —8/14/2014 6:52 AM
I purchased the programmer and changed to some high quality aftermarket spark plugs. The combination of the two gave me a 2.5 MPG gain. I also had 33.20 inch tires and was able to adjust the speedometer as well as adjust the rev limiter to match the speed rating of the tire. The only other adjustment I made was the shift firmness of the transmission. I would recommend this purchase if you have made any aftermarket adjustments or if you want and extra mile or two per gallon.