Nitrous plate systems are a popular upgrade for immediate horsepower gains, especially on GM platforms with LS, LT, and carbureted or EFI intake configurations. This guide highlights five top nitrous plate system options, detailing compatibility, performance ranges, and installation considerations. Whether you’re chasing higher mid-range torque or peak horsepower, these selections cover a range of applications from street to strip. Below is a quick summary table of the featured products to help you compare at a glance.
| Product | Brand | Key Benefit |
|---|---|---|
| Nitrous Express 20935-10 78mm EFI Nitrous Kit | Nitrous Express | 3-bolt plate, versatile LS compatibility |
| 4150 Nitrous Plate 00-44500 | Bonbo | High-flow plate for 4150 manifolds, precise atomization |
| Nitrous Express 15728 Carburetor Plate Solenoid Bracket | Nitrous Express | Solenoid mounting for 4150 carburetor plates |
| GM Nitrous Plate Kit | Cold Fusion Nitrous | Cold Fusion Nitrous | 90mm throttle body setups for newer GM engines |
| Nitrous Express 20933-10 GM LS Plate System | Nitrous Express | 10 lb bottle kit with LS-specific plate |
Selecting the right nitrous plate system depends on engine family, intake manifold design, and desired horsepower range. This article provides objective guidance on fitment, jetting options, tuning considerations, and installation tips to help you choose a system that aligns with your goals and your build’s capabilities.
Nitrous Express 20935-10 78mm EFI Nitrous Kit with 3-Bolt Plate
The Nitrous Express 20935-10 kit is designed for GM LS engines using a 3-bolt throttle body interface. The 78mm billet nitrous plate sits between the throttle body and intake, offering a clean installation and a compact footprint suitable for many LS-swapped applications. This system ships with jetting ranges that cover 50 to 400 horsepower at the wheels, enabling a broad spectrum of power upgrades without swapping manifolds. Installation is typically straightforward for builders familiar with EFI platforms, as the plate integrates with standard 3-bolt throttle bodies and LS-style intakes. Proper tuning and fuel support are essential to achieve reliable performance across the jetting map. The kit’s aluminum construction emphasizes light weight and durability for repeated use on street and strip settings. Operators should verify compatibility with their exact throttle body and manifold configuration to ensure seal integrity and correct bolt patterns.
4150 Nitrous Plate 00-44500 For Carborated And EFI Single Plane 4150 Flange
The 00-44500 nitrous plate from Bonbo is tailored for carbureted and EFI single-plane 4150 flange manifolds. It’s designed to handle up to 600 HP max flow and distributes nitrous through 16 discharge ports for even plenum saturation. With a plate thickness of 0.750 inches, this design emphasizes precise atomization and consistent distribution across a broad torque curve. It’s well-suited for street cars and race cars that operate on 4150-style manifolds, where even fuel and nitrous delivery can reduce charging losses and improve throttle response. When selecting this plate, ensure the manifold flange matches 4150 style and that the installation allows for proper jetting and tunement across your chosen horsepower range. Fine-tuning may involve coupling with a compatible direct-port fogging system or standalone jetting kit depending on your goals.
Nitrous Express 15728 Carburetor Plate Solenoid Bracket
The Nitrous Express 15728 Solenoid Bracket is a practical mounting accessory for 4150-style carburetor plates. While not a complete plate system on its own, this bracket consolidates solenoid mounting and wiring management, helping to maintain clean routing and stable electrical connections in a nitrous setup. The item is manufactured in the United States and is designed to fit standard auto parts packaging. For builders planning a street or race-focused nitrous install with a carbureted or EFI 4150 manifold, pairing this bracket with a plate and compatible solenoids can simplify installation, reduce vibration-related wear, and improve reliability during high-G cornering or sustained pulls. Always verify compatibility with your specific plate model and the solenoid type included in your system.
Nitrous Express 16002 NX License Plate Frame NX
The NX License Plate Frame is a practical cosmetic and mounting accessory designed to fit Nitrous Express kits. While it does not contribute directly to power, a cleanly mounted plate frame helps with aesthetics and airflow around the nitrous hardware. For builders who prioritize a neat under-hood appearance or want to ensure the nitrous system sits securely against the mounting surface, this frame provides a durable plastic option branded by Nitrous Express. It’s a useful addition for those upgrading from an off-the-shelf, generic mounting setup to a purpose-built platform that includes plate software and wiring harnesses. When planning a full kit, consider whether a branded frame aligns with your finish and install preferences.
GM Nitrous Plate Kit | Cold Fusion Nitrous
The Cold Fusion Nitrous Plate Kit focuses on GM engines, particularly 2005+ Camaro, GTO, and Corvette platforms equipped with a 90mm throttle body. It provides multiple power options, with jetting for gains of 100, 125, 150, 200, and 250 horsepower. The kit includes high-capacity solenoids rated for up to 350 hp, which helps deliver reliable performance during high-demand runs. This setup is designed to optimize distribution across the intake plenum for consistent throttle response and predictable tuning, making it a strong choice for enthusiasts who want a turnkey solution with documented gain potential. When selecting this kit, verify throttle body compatibility and ensure you have adequate fuel system support to maintain safe air/fuel ratios during nitrous use.
Nitrous Express 20933-10 GM LS Plate System
The 20933-10 GM LS Plate System is a comprehensive LS-focused solution that includes a 10-lb bottle and LS-specific plate system. The kit emphasizes a vehicle-specific fit, ensuring alignment with LS engine compartments. It’s designed to deliver a broad spectrum of horsepower gains across a 50–400 HP range. This system is suitable for LS swaps and factory LS engines looking to increase track performance or drag-race readiness. Key considerations include ensuring proper bottle mounting, line routing, and tuning to avoid fuel delivery limitations. The 20933-10 package is intended for enthusiasts who prefer an integrated system with bottle support and LS compatibility in a single package.
Buying Guide: Key Considerations for Choosing a Nitrous Plate System
- Engine and manifold compatibility: Confirm that the plate’s flange pattern (e.g., 3-bolt LS, 4150 carburetor, or 90mm throttle body) matches your intake manifold and throttle body configuration.
- Horsepower range and jetting options: Look for a system that provides a suitable horsepower span and adjustable jetting to dial in performance for street use or strip launches.
- Solenoids and plumbing: High-capacity solenoids and quality plumbing help ensure reliable spray and charge separation. Assess wiring harness routing and wiring protection.
- Fuel system support: Nitrous systems require adequate fuel supply. Consider whether your current fuel pump and injectors can safely support planned horsepower gains or if upgrades are necessary.
- Installation and fitment: Assess the ease of installation relative to your vehicle and manifold. Plates should seat cleanly without leaks, and mounting hardware should minimize vibration and movement.
- Tuning and safety: A qualified tune is essential. Evaluate whether the kit includes recommended jetting curves or requires a tuner to set up safe air/fuel ratios and timing.
- Brand and support: Reputable brands with documented test data and customer support help ensure reliability and easier troubleshooting down the line.
- Durability and materials: Billet aluminum plates and corrosion-resistant components extend service life under race conditions.
Across these selections, users should map their goals—from a bolt-on performance bump for daily driving to a high-horsepower setup for track days. Proper installation, thorough tuning, and ongoing maintenance are essential to maximize safety and performance when running nitrous plate systems on GM engines.