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NOS Dual Stage Big Shot Nitrous System

Dual Stage Big Shot Nitrous System Dominator 100-300 HP

PART# 02402NOS

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Not all race cars can benefit from getting an instant boost of up to 300 horsepower, as is the case with the NOS Big Shot Single Stage systems. This is because the vehicle's tires and chassis may not be able to cope with the additional horsepower, resulting in a severe loss of traction. To provide for a more gradual application of power, NOS offers highly effective Big Shot Dual Stage systems. These systems incorporate two sets of nitrous and fuel solenoids so that power can be added in two events. The first stage allows the vehicle to leave the line with a moderate performance boost, say 200 horsepower. Then, when the tires are "hooked up", you can push the button for an additional 400 takeyour- breath-away ponies. This first stage is activated by a throttle switch while the second stage is activated by pushing a button, or optional Precision Delay Timer (15838NOS). Activation of the second stage automatically deactivates the first stage. Two Cheater™ solenoids control the first stage while a Super Pro Shot nitrous solenoid and a high-output Cheater fuel solenoid control the second stage. A 10 lb. nitrous bottle is standard. Optionally available are a wide variety of NOS electronic controllers. These can be employed, for example, to activate the second stage, while a NOS Progressive Nitrous Controller can be used to actually dictate the amount of nitrous (in percentages of total power potential) and the timing. Actual performance gains will vary depending on the engine's condition, configuration and jetting of nitrous system. Optional power jets are available for a variety of horsepower settings.


  • More Gradual Power Application
  • 2 Sets Nitrous/Fuel Solenoids
  • Includes 2 Cheater Solenoids
  • Includes SuperProShot Nitrous Solution


Bottle ColorNOS Blue
Bottle Size10 lb
Emission Code4
Fuel SolenoidCheater
Included Jetting Horsepower185, 190, 210, 225, 250, 275
Jet StyleFlare
Max Horsepower300
Nitrous SolenoidCheater and Super ProShot
Number of Solenoids4
Number of Stages2
Plate Flange4500 Dominator
Product TypeNOS System
System StyleWet
Part Number02402NOS

Service Parts



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

Tech Resources

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.
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