Q-Jet Spreadbore Nitrous System 50-300Hp with 12Lb Carbon Bottle Nitrous Express NX 30080-12 - USA-NX-30080-12 - Q-Jet Spreadbore Nitrous System 50-300Hp The conventional Stage 6 is the perfect entry level nitrous system for the budget minded sportsman racer. These systems feature the most advanced technology using the conventional spraybar design. Systems come complete and include limited lifetime guaranteed Lightning solenoids, heavy duty 40 amp relay, 10lb bottle, stainless bottle brackets, and extra long 4AN supply line. (Q-jet / Holley Spreadbore gasoline version) If you have an aftermarket engine management system that is capable of adding nitrous enrichment fuel and want this system DRY (no fuel components), please contact us. THE NITRO BOTTLE IS EMPTY!