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NOS Dry Nitrous Plate System for Holley LS Hi Ram Intake Manifold - Black

1-Piece Black Billet Aluminum Nitrous Plate System with 15 lb Black Bottle


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NOS sandwich-style plate systems are designed to bolt between the upper and lower intake sections on Holley Hi-Ram LS manifolds. Our dry nitrous systems give you everything you need including 2 NOS Pro-Race nitrous solenoids, brackets, hoses, jetting, and hardware, along with your choice of nitrous bottle. At the center of this system is our machined billet 6061-T6 aluminum plate laser engraved with NOS logo, then anodized for great looks and excellent corrosion protection. Our 1-piece plate features machined passages that precisely spray into the center of each cylinder. Plate includes jetting for up to 250 horsepower but is capable of supporting 1000+ horsepower. The plate is made from billet aluminum with passages machined directly into the plate so there is no need to worry about spray bars breaking or spinning.


  • This dry single stage plate system sandwiches between the bottom base and top plate on Holley Hi-Ram intake manifolds
  • Designed specifically for optimum nitrous distribution on LS-based engines
  • Sprays nitrous directly into each cylinder runner for proper nitrous distribution
  • Plate features machined 0.103” passage that feeds (8) 0.040” openings per intake runner
  • Plate is made from billet 6061-T6 aluminum and has laser etched NOS logo
  • Plate is anodized black or clear for corrosion resistance and high quality appearance
  • System utilizes two NOS Pro-Race nitrous solenoids
  • Includes jetting for 50, 100, 150, 200, and 250 horsepower configurations
  • Supports up to 1000+ horsepower (jets purchased separately)
  • Includes Plate, Gasket, Hardware, Jet Holders, Solenoids, Brackets, Hose, Fittings, and Jetting for up to 250 horsepower
  • Systems available with 10 LB, 15 LB, or 12 LB Carbon Fiber Nitrous bottle


Bottle ColorBlack
Bottle IncludedYes
Bottle Size15 lb
Brackets IncludedYes
Delivery StyleHi-Ram Plate
Emission Code4
Included Jetting Horsepower50, 100, 150, 200, 250
Jet StyleFlare
Max Horsepower1000
Nitrous SolenoidPro-Race
Number of Solenoids2
Plate ColorBlack
Plate FlangeHolley Hi-Ram
Plate Height1/2 inch
Plate IncludedYes
Product TypeNOS System
Solenoid Top Cover ColorBlack
System StyleDry
Part Number05501BNOS

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This part is legal for sale or use on Racing Use Only Vehicles

The following vehicles are considered Racing Use Only Vehicles:

  • Racing Use Only Vehicles are vehicles that are used exclusively for competition that are not registered and that may never be used on the street

WARNING: It is against the law to install this part on an Emissions Controlled Vehicle

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