Nitrous Express 63071-15 4500 Covert Crossbar Plate Stage 6 Nitrous System 50-300HP with 15lb Bottle

The Nitrous Express 4500 Covert Crossbar Plate System with Stage 6 jetting delivers adjustable performance from 50 to 300 horsepower in a complete, race-ready package. Designed for 4500 flange manifolds, this advanced billet crossbar nitrous plate system features CNC-machined construction that eliminates traditional round spray bars for superior atomization and precise cylinder-to-cylinder distribution.

Stage 6 Jetting Configuration:

• Includes jets for 50, 100, 150, 200, 250, and 300 horsepower settings
• Allows easy power level adjustment for different racing applications
• Precise nitrous and fuel metering for safe, consistent performance

Complete System Includes:

• Billet aluminum crossbar nitrous plate with no spray bars to sag, rotate, or disrupt airflow
• 15lb nitrous bottle with powder-coated finish (6.89" diameter x 26.69" tall)
• Lightning 500 billet aluminum bottle valve with 5/8" siphon tube and .500" orifice
• High-flow Lightning solenoids with limited lifetime warranty
• Custom solenoid mounting bracket
• Braided stainless steel lines with nickel-plated fittings
• Wide-open throttle activation switch
• Master arming switch with 40-amp relay and wiring harness
• Complete jetting for all six power levels

The innovative crossbar design provides even nitrous and fuel distribution across all cylinders without the flow restrictions and installation challenges of traditional spray bar systems. The Lightning 500 bottle valve features dual gauge ports, a 45-degree outlet for improved flow, and weighs nearly one pound less than conventional brass valves while delivering superior performance.