Here is the Cummins power harness everyone has been asking for. It has a cab mounted control knob that is adjustable from 0 to 10. It is quality made with OEM connectors. Comes complete with 10 feet of wire to run into cab. All you need to do is unplug your fuel pressure sensor and plug this inline. Then run harness into cab and plug in the controller. You can expect HP increase of 100 HP at it's highest setting. And also better fuel mileage 1/2 to 1 MPG. This will work on 2003 to 2010 engines with EGR valves. If you have any questions please feel free to ask.