Ram Trucks 6.4L Hemi Engine- Introducing a ground-breaking product from Edge Products: The Pulsar. The Pulsar is an in-line computer that connects directly to the vehicle PCM, eliminating unnecessary wires in the engine compartment. By connecting directly to the trucks PCM, Edge has the ability to control the vehicle's signals to optimize performance gains, throttle response, MDS controls, mileage, and more. Adjust for tire size or gear ratio with the Pulsar. To make things even better, the Pulsar offers 8 performance levels that are changed by using the vehicle cruise control + and buttons on the steering wheel. Add Edge's award-winning Insight monitor and control power levels through the monitor, while keeping an eye on vital vehicle parameters. Power levels are displayed where the gear indicator shows on the dash. Pulsar installs in minutes and is the most exciting and innovative product on the market for 2015-2018 Ram 6.4L Hemi engine trucks!