I have a used edge pulsar for a 2015-2018 ram 1500 with a 5.7 hemi for sale. The tuner worked flawlessly when I removed it. This really wakes up the hemi and adds horsepower and torque. You can switch between 8 power levels on the fly by using the cruise control buttons. I have the original box and long screws that are necessary for installation. For those that do not know, the Pulsar does not require the ECU to be unlocked. This is a piggy back tuner, or it alters the fueling and other parameters after the ECU. You do not need to plug this into the OBD2 port to alter the ECU. It is completely removable in minutes and it leaves no indication to a dealership that the ECU was altered or the truck's performance was increased. It takes 10 minutes to install. $350 shipped.