Pro Shot Fogger, Custom Nitrous Plumbing Kit, 8 Cylinder, w/ Solenoids, Kit includes: 13700B nozzles, adjustable to 100-500HP (comes with 300HP jets) - Plumbing kits are offered for those needing only the components related to the intake manifold plumbing of a direct port injection kit. Proper quantities of nozzles, lines, jets, and appropriate fittings are included. Plumbing kits are also available in “show” version with polished lines, distribution blocks and chrome solenoids (if included in part number).