The Nitrous Express NX940 nitrous plate conversion is engineered to bolt directly between the upper and lower plenum of Holley Hi-Ram manifolds. This design provides a streamlined installation while delivering direct-port quality nitrous and fuel distribution to each cylinder without the airflow interference of traditional nozzles or spray bars.

CNC-machined from high-grade billet aluminum, the plate features internal passages for precise fuel and nitrous delivery. This internal routing eliminates the risk of spray bars loosening, spinning, or breaking within the intake runners. By injecting from the side of the runner, this plate maintains maximum intake velocity and volume, ensuring consistent performance across all cylinders.

• Designed specifically for Holley Hi-Ram intake manifolds
• Precision CNC-machined billet aluminum construction
• Internal machined passages replace traditional, restrictive spray bars
• Side-runner injection provides direct-port distribution characteristics
• Maintains unobstructed airflow through the intake runners
• Manufacturer Part Number: NX940

The Nitrous Express NP933 102mm 4-Bolt LS Nitrous Plate is a precision-engineered solution for adding nitrous injection to your GM LS-based engine. Designed to install between the throttle body and the intake manifold, this plate provides a secure and integrated way to deliver a consistent nitrous and fuel mixture directly into the intake stream. It is specifically sized for 102mm throttle bodies to ensure an unobstructed airflow path.

Fits select 1997-2020 Buick, Cadillac, Chevrolet, GMC, Hummer, and Pontiac vehicles (LS-series engines). This component is sold as the nitrous plate only, making it the perfect choice for custom builds, system upgrades, or replacing a worn plate in an existing NX system.

• Bore Size: 102mm
• Mounting Type: 4-Bolt Flange
• Engine Compatibility: GM LS-based V8 engines
• Configuration: Nitrous Plate Only (no solenoids or lines included)
• Manufacturer Part Number: NP933

Constructed for high-performance durability, the NP933 plate ensures optimal atomization across the intake plenum for reliable power gains when you need them most.