NOS Pro Two-Stage Wet Nitrous System 02301BNOS
NOS Pro Two-Stage Wet Nitrous System 02301BNOS NOS Pro Two-Stage Wet Nitrous System 02301BNOS NOS Pro Two-Stage Wet Nitrous System 02301BNOS NOS Pro Two-Stage Wet Nitrous System 02301BNOS NOS Pro Two-Stage Wet Nitrous System 02301BNOS

NOS Pro Two-Stage Wet Nitrous System 02301BNOS

$1,573.99 ea
Condition: NEW
Estimated arrival: 02/04/2022 (If Ordered Today)
13 available from HOLLEY PERFORMANCE PRODUCTS as of 01/19/2022
Supplier has not provided any fitment data for this product.
Shipping Note:Standard Delivery

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Muscle Cars & Classics always recommends professional installation of our products. Buyer assumes risk of damage caused by improper installation.

NOS is proud to now offer its powerful Pro Two-Stage wet nitrous system in black. This dual stage system gives you a moderate shot of nitrous at the line to get a solid start. Then, second stage of nitrous gives you serious muscle through mid-track and the top end. This system is adjustable from 200-500 horsepower and uses a special dual stage plate design for excellent nitrous flow, fuel atomization and mixture distribution. Our Big Shot style Pro Two-Stage plate utilizes four unique spray bars equipped with tiny orifices precisely located to efficiently dispense a powerful nitrous/gasoline mixture for unbelievable horsepower gains. Power output is adjustable from 200-500 horsepower simply by changing fuel and nitrous jets. This dual stage system includes everything needed including 6AN feed line, 1/2 inch fogging aluminum plate, black 10 lb. bottled, solenoids, hardware, and instructions to complete the installation.
  • Incl. Jettings For 200/250/300/370/420/500 Horsepower
  • Incl. 4150-Flange 1 in. Thick Dual Stage Plate w/4 Spray Bars
  • Offers Steady/Precise Nitrous Flow/Fuel Atomization/Mixture Dist.
  • Incl. 2 Cheater Fuel/2 Cheater Nitrous Solenoids
  • Bottle Is Made From 6061-T6 Aluminum
  • Incl. Mounting Hardware and Instructions
  • 6 AN Feel Line Size
  • Square Bore Plate Delivery Style
  • Flare Jet Style
Holley Performance Emission Code 4: 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
Installation Notes:
To supply the proper amount of fuel to the carburetor and the Big Shot System, a fuel pump must be used that is designed to operate between 4.5 and 7 psi, with a flow rate of 0.1 gallons per horsepower at 6 psi. For example, an engine that produces 350 horsepower when the Big Shot System is activated will require a fuel pump that flows at least 35 gallons per hour at 6 psi.

About NOS

NOS - Nitrous Oxide Systems. NOS has powered more racers than any other brand of nitrous. When you're looking to go fast, rely on NOS to deliver the most power per dollar available. From stock engines to race vehicles, jet skis to trucks, NOS has a kit for you.


Download Name File Size


Activation Microswitch
Adjustable Yes
Bottle Color Black
Bottle Included Yes
Bottle Size 10 lb
Brackets Included Yes
Delivery Style Square Bore Plate
Emission Code 4
Feed Line Size 6AN
Fuel Solenoid Cheater
Included Jetting Horsepower 200, 250, 300, 370, 420, 500
Jet Style Flare
Max Horsepower 500
Nitrous Solenoid Cheater
Number of Solenoids 4
Number of Stages 2
Part Type Nitrous Oxide Injection System Kit
Plate Flange 4150
Plate Height 1 inch
Solenoid Top Cover Color Black
System Style Wet
Type Wet
Usage Strip/Competition
WARNING CA Proposition 65 WARNING: Cancer and Reproductive Harm

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