Nitrous Express Nitrous & Water Injection Nitrous Kit w/Billet LT4 Supercharger Lid w/o Bottle (20939BMF-00) 1609 Clamps Provide Tight Connections/Durability

Clamps Provide Tight Connections/Durability

seals and o-rings all come pre-installed

You must review ourMyGeniusECU Tuning Guideand email the ECU Tuning Information form to us

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Nitrous Express Nitrous & Water Injection Nitrous Kit w/Billet LT4 Supercharger Lid w/o Bottle (20939BMF-00) 1609 Clamps Provide Tight Connections/DurabilityThis Billet LT4 Supercharger Lid replaces the upper supercharger lid on all GM LT4 Superchargers for a quick and clean install. Nitrous and fuel are injected into each cylinder from the side of the runner providing direct port like distribution ensuring maximum performance. This lid is made from a solid piece of billet aluminum with 1 8NPT machined directly into the plate so there is no need to worry about gaskets leaking. The nitrous system comes