Edge products EZ
BBean, if you have a 24Valve engine, the injection pump is computer controled. The EZ box plugs into the existing engine computer wiring using existing factory plugs, and changes the injection timing and quantity.
There are other products that do the same things, but the EZ seems to be the most popular. Mine took 3 min. to install, then I did the boost elbow a day or two later, this took about 30 min.
The edge products EZ box makes the Cummings engine feel like it should!! much better response, and power.
Warning!! Repeat: WARNING!! Power becomes ADDICTIVE!!
Greg L.