Nitrous Express Nitrous Kit w/Billet LT4 Supercharger Lid w/o Bottle (20939-00) FITMENT_SPORT_TECH Simple plug-and-play design with no

Simple plug-and-play design with no trimming or drilling necessary

All filter assemblies feature an O-ring for positive sealing in high pressure applications

NOTE: Does not fit standard (non-PSE) factory mufflers

(1) sound controller UNI #2 (Part Number P-HF841/2)

Nitrous Express Nitrous Kit w/Billet LT4 Supercharger Lid w/o Bottle (20939-00) FITMENT_SPORT_TECH Simple plug-and-play design with noThis 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 inside of the supercharger lid, providing direct port style distribution. Systems come standard as a single stage with jetting for 100 to 300WHP. This lid is made from a solid piece of billet aluminum with 1 8NPT machined directly into the lid, which makes it easy to add a