NOS Big Shot Nitrous Oxide Injection System

NOS Big Shot Nitrous Oxide Injection Systems represent the pinnacle of plate-style nitrous performance, engineered for serious street and strip applications where repeatable, high-output power gains are the goal. Backed by NOS — the brand that has powered more racers than any other nitrous manufacturer — the Big Shot product line delivers a complete, ready-to-install nitrous solution in both single-stage and dual-stage configurations, accommodating a wide range of induction setups and carburetor flange styles.

Proprietary Fogging Plate Technology:

At the core of every Big Shot system is a precision-machined, half-inch aluminum fogging plate featuring a unique spray bar equipped with precisely positioned orifices. This advanced plate architecture significantly improves nitrous flow, fuel atomization, and mixture distribution compared to conventional plate designs — resulting in efficient combustion, consistent power delivery, and crisp throttle response under activation.

Broad, Adjustable Power Output:

Big Shot systems are built around easily interchangeable fuel and nitrous jets, giving tuners the flexibility to dial in power output across a wide range simply by swapping jets — no major hardware changes required. Wet and dry system variants are available, accommodating both carbureted and EFI induction setups across multiple carburetor flange styles including Holley 4150 square bore and Dominator 4500 configurations.

Dual-Stage Capability:

Select Big Shot configurations are offered as dual-stage systems, engineered to deliver nitrous in two distinct stages for maximum traction and launch control. The first stage provides a moderate boost off the line, while the second stage unlocks full power once the tires are fully hooked — giving competitors a significant tactical advantage on the strip. First-stage activation is throttle-switch triggered, while the second stage is push-button activated, and second-stage activation automatically deactivates the first.

Complete Kit Contents (Varies by Configuration):

• Precision fogging injector plate — half-inch aluminum construction with spray bar for superior mixture distribution
• NOS Pro Shot or Super Pro Shot nitrous solenoid(s) for metered, high-flow nitrous delivery
• Large-capacity -6 AN nitrous feed line for high-volume, consistent nitrous supply
• Assortment of interchangeable power jets for broad out-of-the-box tuning range
• Inline filters to protect solenoids and jets from contamination
• Fuel and nitrous fittings for a secure, leak-free installation
• Activation switches and all required electrical hardware for a complete wiring solution
• Mounting brackets and hardware for a clean, professional installation
• Nitrous bottle (included with select kits; configuration-dependent)

With configurations spanning single-stage and dual-stage setups, wet and dry systems, and multiple flange styles for carbureted and EFI applications, the NOS Big Shot line stands as one of the most versatile and capable plate nitrous systems available. See individual product listings for exact kit contents and configuration-specific details.

Important Notice: High cylinder pressures are generated with the use of nitrous oxide systems; forged internal engine components are strongly recommended. A fuel pump capable of operating between 5 and 10 psi with a minimum flow rate of 0.1 gallons per horsepower per hour at 6 psi is required. These products are intended for off-road and competition use only and are not for use on emissions-controlled vehicles.