So far, most of Lange's feedback on his regulator has come from Pro Stock and Pro Stock Truck racers. Even on "real comp stuff" like these guys run, he tells us, "we only run 4-5 pounds of pressure.

There is an optional Shop Pro 95 model with a 50 p.s.i. regulator for use on other diesel engines. The Shop Pro MX is for use on the suction side of Paccar MX -11 and -13 engines.