I run a real basic single stage system from Coolingmist. The service and tech help from David are excellent. Since I put my kit on they have added braided steel lines and new couplers/fittings for the lines, and also a very versatile variable controller that you can use both boost and EGT's to run the water.

My 6 gallon tank and pump are mounted in my tool box. I can use all 6 gallons when towing my towhauler in about 100 miles. Wanting to go to atleast to a dual nozzle setup if not a dual stage set up.

I notice the EGT's are reduced by about 150 degrees or so. Its kind of neat to watch them actaully dropping(digital gauge), and you know when the waters on!