The Pulsar + Insight CTS3 kits are the best performance combo on the market for late model Hemi trucks. 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 truck's 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 or with the Insight Monitor. Edge's award-winning Insight CTS3 monitor allows you to control power levels through the monitor while keeping an eye on vital vehicle parameters. Power levels are displayed on the dash as well as on the monitor. Pulsar installs in minutes and is the most exciting and innovative product on the market for 2019-2021 Ram 1500 HEMI engine trucks!