2012 avalanche and 2015 silverado
I bought it to use on both truck with superchips go two purchase option. Also bought it for tire size and to turn off the active fuel management which it does perfectly. It is nice to have a 6th gear to use without having it go into 4cyl. mode. Seems to get better mileage because of the 6th gear. I only ran manual 5th because I didn't want it to go into 4cyl. I am happy with the performance gain. It is slight but noticeable and the shift setting options make it shift firmer.
Instant results, extremely easy to use.
Main reason for my purchase was to give my 2007 Chevy Avalanche a little kick when either accelerating from a dead stop or getting onto a freeway. Being only a 4 speed, I noticed my Avalanche "lagged", for a lack of a better word, when getting onto a freeway and trying to accelerate to freeway speeds. I wasn't expecting a huge boost, but I definitely noticed an increase in power when I put the pedal down. Fuel economy stayed the same if not increased, highly recommend this product.