Dynomite Diesel LMM-75NZ Injector Nozzle Set – 30% Over | +75 HP

Upgrade your 2008–2010 6.6L Duramax LMM with Dynomite Diesel’s 30% over injector nozzle set. These precision-machined nozzles flow 30% more fuel than stock and typically deliver around +75 rear-wheel horsepower. With the right supporting modifications and tuning they can support 675–700 RWHP.

This is the largest nozzle size recommended for use with a stock CP3 injection pump and stock turbo. It is an excellent choice for street-driven trucks and moderate performance builds that want a noticeable power increase without replacing the entire injector assembly or upgrading the fuel system.

The set is sold fully balanced and flow-matched so all eight nozzles deliver even fuel distribution for smoother operation and reliability at higher power levels.

Key Features

• 30% increased fuel flow over stock
• Approximately +75 RWHP
• Supports 675–700 RWHP with proper supporting modifications
• Largest size recommended for stock CP3 and stock turbo
• Balanced and matched set of 8 nozzles
• Cost-effective alternative to full injector replacement (reuse your existing injectors if they are in good condition)
• Improved fuel atomization for better combustion

Fitment

• 2008–2010 Chevrolet Silverado 2500HD / 3500HD
• 2008–2010 GMC Sierra 2500HD / 3500HD
• 6.6L Duramax LMM diesel

Important Notes

Professional installation is required. The nozzles must be installed and the injectors properly calibrated by a shop experienced with oversized injectors. Horsepower gains cannot be guaranteed unless the nozzles are calibrated correctly and supporting modifications (tune, etc.) are in place.

These nozzles are not recommended for frequent or heavy towing when running a stock turbo.

Unlock more power from your LMM Duramax with a proven, high-quality nozzle upgrade from Dynomite Diesel.