Pulsar has been a ground-breaking product from Edge! The Pulsar is an in-line computer that connects directly to the vehicle PCM, with no additional wiring harness. By connecting directly to the truck’s PCM, Edge has the ability to control the vehicle to optimize performance gains, throttle response, MDS controls, mileage, tire size, gear ratios, and more. The Pulsar offers 8 performance levels that can be switched on-the-fly by using the vehicle cruise control “+” and “–” buttons on the steering wheel. Pulsar installs in minutes and is the most exciting and innovative product on the market for the 2015-2018 Ram 1500 Hemi trucks!