Dynomite Diesel LMM-50NZ 20% Over Injector Nozzle Set – ~50 HP for 2007.5–2010 6.6L Duramax LMM

Upgrade your 2008–2010 (2007.5–2010) 6.6L Duramax LMM with a cost-effective, high-performance nozzle swap. The Dynomite Diesel LMM-50NZ set flows 20% over stock, delivering approximately 50 rear-wheel horsepower on a stock or lightly modified truck while keeping excellent street manners, idle quality, and often improving fuel economy.

These nozzles are a drop-in replacement for your existing injectors (assuming the injector bodies are in good condition). No additional fuel-system upgrades are required for the base power gain. With proper supporting modifications they can support up to 600 RWHP.

Key Benefits

• Noticeable power increase (~50 RWHP over stock)
• Better fuel atomization for cleaner combustion, less smoke, and lower EGTs
• Common 1–2 MPG improvement reported by owners
• Safe for daily-driven and stock trucks
• Precision balanced and matched set for smooth operation
• Significantly more affordable than replacing complete injectors

Technical Highlights

Dynomite Diesel uses advanced flow machining and honing (K-Factor / AFM process) rather than simple oversized orifices. This removes flow restrictions at the orifice entrance, reduces turbulence, and produces a finer spray pattern for more complete combustion.

Fitment

• Engine: 6.6L Duramax LMM
• Years: 2007.5–2010 Chevrolet Silverado / GMC Sierra 2500HD & 3500HD
• Sold as a complete matched set of 8 nozzles

Installation Notes

Professional installation and injector calibration by a shop experienced with oversized nozzles is strongly recommended. A pyrometer is advised to monitor exhaust gas temperatures. Horsepower gains assume proper calibration and supporting modifications where applicable.