Nitrous Oxide Purge KitNitrous Purge Valve Kit; -04AN Manifold Adapter Fitting; Push Button Activation; Vent Tube;FEATURES:Nitrous Purge Valve Kit4 AN Manifold To Run Inline With Nitrous FeedAllows Purge When Solenoids Have No Purge Port Built InThe NX Purge System is designed to purge the air from your nitrous lines to allow immediate and consistent activation of your Nitrous system. This system includes a Lightning solenoid, push button for activation, and a vent tube to direct the purged nitrous out of the solenoid. This purge system also includes the needed hardware to accommodate plate systems with integrated solenoids. This is the correct purge system for the following part numbers:20110-XX (GM MAF system) 20931-XX (5th Gen Camaro plate system) 20947-XX (Ford 3v plate system) 20948-XX (Ford Coyote plate system)Wow, how do I start to tell the world why NX is different and better than any other company? Lets start with the NX philosophy: All components must be of the highest quality, no off shore junk; 99% of NX products are produced and assembled in the USA; All NX components and systems must be tested and proven before they are shipped to any customers; All horsepower claims must be accurate and dyno proven at the wheel! NX copies no one; we lead the industry in technology and innovation; Never be satisfied with the status quo; Always give the customer more than he expects!