Reviewed By RICHARD J (Parachute, CO) Reviewed for a 2005 GMC Savana —7/13/2014 9:25 PM
Big difference in power. I get 3 to 4 mpg more when using performance level.
Reviewed By Larry P (Woodbridge, VA) Reviewed for a 2007 Chevy Silverado —1/28/2010 5:11 PM
I bought this to correct the speedometer. I have a 6 inch lift with 35s. I was hoping to get better gas mileage. I have it set at stage 2. The added hp is great, but I have not seen an increase in mpg.
Reviewed By James E (Huntsville, AL) Reviewed for a 2009 Chevy Silverado —1/12/2010 2:44 AM
Installation was easier than expected, took literally 5 min. Can feel power increase and see difference in better mpg. I bought the tuner because you can adjust settings like fuel trims yourself and it will hold custom tunes.