Reviewed By Darren T (DENVER, CO) Reviewed for a 2014 Chevy Silverado —4/18/2016 12:36 PM
I've never tuned one of my trucks before but I couldn't believe how easy this was to install and I couldn't be happier with the gains I got from it. I first tuned my tuck for 87 octane and the initial gains were pretty good. Then I decided to re-tune it for 91 octane and OMG there was a huge difference! The responsiveness is awesome and the increase in mileage is substantial. Awesome tuner!