For the enthusiast who wants to use nitrous yet does not want to spend a lot of money, the Hitman is the way to go. Equipped with the latest Lightning 45 bottle valve, stainless bottle brackets and the adjustability of three horsepower settings: 100-150-200. The Phase 3 series nitrous plates are the Next Generation in nitrous performance and reliability. This new innovation in plates provides superior distribution and outstanding atomization. With no spray bar to sag, split, block airflow, or damage this is truly the Next Generation in plate technology. The Hitman is the perfect, low cost, introductory system for the nitrous novice. The Hitman Plus has all the great features of the original Hitman yet it is upgradeable to Stage Six capability. The Plus comes standard with four horsepower settings (50, 100, 150, 200) and is upgradeable to 300 HP with the addition of a large N20 solenoid and jets. System also includes 40amp relay along with WOT switch and bracket.