I got my Predator 2 in today and hooked it up to my 2016 5.3L Z71. I used the 87 octane tune and increased the throttle boost by 10%...man, what a difference. I don’t know that there is a noticeable increase in power, but the throttle response is worlds better. Before I’m harangued for going with the non-customizable option...that was a conscious choice. The barrier to entry in that world (both in cost and hassle) is high enough that I know my cheap/lazy self would never follow through with it. Might as well save the $50 over the I3. I’ll probably play with it a little more as time goes on, but for now I am quite happy with the purchase.