Dynomite Diesel DDP 325-50NZ 50HP 15% Over Fuel Injector Nozzle Set for 2004.5–2007 5.9L Cummins

Give your 5.9 Cummins a noticeable, street-friendly power bump without replacing the entire injectors. The DDP 325-50NZ nozzle set uses 15% over-size nozzles to deliver approximately 50 rear-wheel horsepower over stock while preserving clean idle, strong fuel economy, and everyday drivability.

These SAC-style nozzles feature Dynomite Diesel’s patented dual 0.005" pilot-hole technology for improved fuel atomization, quicker throttle response, and more efficient combustion. The set is flow-balanced to tighter-than-factory specs so every cylinder gets consistent fueling.

Key benefits

• ~50 RWHP gain on a stock or mildly modified truck
• 15% increased flow for better atomization and torque
• Excellent street manners and typical 1–2 MPG improvement
• Safe for stock trucks (pyrometer recommended)
• Cost-effective upgrade versus a full injector replacement

What’s included

• Complete matched set of 6 nozzles
• New copper washers
• Injector hold-down tool

Fitment 2004.5–2007 Dodge Ram 2500 / 3500 5.9L Cummins (common-rail)

Professional installation and injector calibration by a shop experienced with oversized nozzles is strongly recommended to realize the full performance potential. These nozzles have been used on trucks making well over 500–600 hp on fuel only when supporting modifications are in place.