The Nitrous Express purge kit includes a Lightning purge solenoid, a 6AN manifold, push button and vent tube to remove air from nitrous lines. Purging air allows harder launches and can yield quicker 60ft times, which the manufacturer notes may shave up to two‑tenths off quarter‑mile ETs. This kit is intended where solenoids lack built-in purge ports and provides the hardware needed to introduce a line purge function.
Nitrous Express Nitrous Purge Valve (6AN Manifold Push Button and Vent Tube)