The NOS Pro Shot Nitrous Fogger System was designed with the professional in mind.They were developed primarily for competition race engines with professional drive line components. The Pro Shot Fogger utilizes patented stainless steel "Super A" Nozzle technology for the ultimate in combustion, distribution and adjustability. They allow each cylinder to be injected with a precise cool, dense fuel laden nitrous ''fog'' mixture. The Pro Shot Fogger is the ultimate in technology for producing the largest horsepower gains of any single-stage nitrous system available today!