I installed the JMS Boost Max on my 2013 F150 Crew cab 4x4 with 3.55 rear-end. The Truck at time of Install has 2300 miles on it. My needs were simple. Much better throttle response. Power is not a problem. I contacted JMS both thru E/Mail and a Phone call for a better understanding of the Product. I was clearly explained that this is no Boost Fooler. This is a Microprocessor that will add Boost along with Fuel. It was very simple to install and I believe with drinking Coffey and listening to the stereo in the Garage it took me 15 Minutes. The Instructions along with Picture's and the Dyno Graph were complete and simple. The Throttle response is vastly improved. I am not scared to make a judgment to pass another vehicle or to move thru traffic at a moments notice. The Power is clearly their. I would say I was shocked by both the Drive Ability and the Power of he Truck. I have read different terms used to describe the new found power. I would say for both me and my Wife pressing down the Throttle a little was impressive. Pressing down Throttle half way would push you hard back into the Seat. Full throttle at 10 to 20 miles an hour would light up the Tire or Tires if the Electronic Lock was engaged. The impressive part to this story is I choose the 87 Octane or as stated in the Instructions half power. I also went from 21.0 on average to 23.0 average fuel economy Highway & 18.3 average to 19.9 average fuel economy City. I traded a 2012 Hemi 4X4 with 3.92 rear-end. I missed the quick drivability of that Truck. I now have it back and at a much higher level.