Fogger2™ Nozzle, StandardFogger2 Nozzle, Standard The original, patented NOS Fogger nozzle revolutionized the way nitrous oxide and fuel were dispersed into an engine. And to this day, there's nothing better than it for a variety of applications. However, as engine displacements got bigger, cylinder head designs got better and camshafts technology advanced, it became evident that greater precision was needed and NOS developed the Fogger2 nozzle. Its unique flow design provide