DDP DDPISB-50NZ DODGE 98.5-02 STAGE 1 NOZZLE SET

The DDP ISB-50NZ injector nozzle set is the perfect solution for Cummins owners wanting a major bump in fueling without replacing full injector bodies. These 50% over-stock EDM-cut nozzles are built to deliver enough fuel to support 700–850 horsepower with the right air and fuel system upgrades.

All DDP nozzles are flow-balanced across all 6 units, ensuring clean atomization, smooth operation, and optimal cylinder performance under boost. Whether for street/strip or aggressive towing builds, the ISB-50NZ gets you fueling precision without compromise.

Vehicle Fitment

• 2003–2007 Dodge Ram 2500 / 3500

• 5.9L Cummins Turbo Diesel (Common Rail)

⚠️ Professional installation and custom tuning required.
✔️ Designed to install into factory-style injector bodies.

Performance Features

• 50% Over Fuel Flow – More fuel for more power

• Supports 700–850+ HP with proper setup

• Flow-Matched for precise fueling and cylinder balance

• Nozzles Only – Great for rebuilds or upgrades

• Made in the USA – Quality you can trust

Recommended Supporting Mods

To take full advantage of the ISB-50NZ nozzles, pair them with:

• Modified or Dual CP3 Fuel System

• High-Flow Lift Pump (FASS, AirDog)

• Upgraded Turbo (S300, S400, or Compounds)

• Built Transmission & Drivetrain

• Custom EFI Live or MM3 Tuning

• Head Studs and Intercooler Upgrades (recommended)

Serious Fuel. Precise Control.

The DDP ISB-50NZ nozzles offer an efficient path to more power, ideal for experienced builders who want to upgrade their injectors with proven precision parts.