The Nitrous Express Billet LT4 supercharger-lid nitrous kit replaces the upper lid on GM LT4 superchargers, injecting nitrous and fuel into each cylinder from inside the supercharger for direct-port distribution. Standard single-stage jetting covers 100–300 WHP for a straightforward power increase. Machined from solid billet aluminum with an integrated 1/8NPT port, the kit includes a 15 lb bottle and installs quickly for a clean fit.
Nitrous Express Nitrous Kit w/Billet LT4 Supercharger Lid w/15lb Bottle