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The Nitrous Express billet LT4 supercharger lid updates the upper supercharger cover on GM LT4 units to enable internal nitrous and fuel injection per cylinder for direct‑port distribution. Constructed from solid billet with machine‑ready 1/8 NPT fittings, the system offers a tidy installation and standard jetting for about 100–300 WHP. This package includes a 12 lb bottle when supplied with bottle option.
Nitrous Express Nitrous Kit w/Billet LT4 Supercharger Lid w/12lb Bottle
