Dynomite Diesel LBZ-50NZ 20% Over Injector Nozzle Set 2006–2007 6.6L Duramax LBZ | ~50 RWHP Gain

Upgrade your 2006–2007 LBZ Duramax with this precision 20% over nozzle set from Dynomite Diesel. These nozzles deliver approximately 50 rear-wheel horsepower over stock while remaining safe and well-mannered on a completely stock truck. They offer a noticeable improvement in throttle response, cleaner combustion, and often better fuel economy—without requiring additional supporting modifications for everyday use.

The nozzles are capable of supporting 625–650 RWHP when paired with the right fuel system, turbo, and tuning upgrades, making them an excellent foundation for mild-to-moderate performance builds, towing, or daily driving.

Key Benefits

• Approximately 50 RWHP over stock
• 20% increased flow over factory nozzles
• Supports 625–650 RWHP with proper supporting modifications
• Excellent street manners and drivability
• Common 1–2 MPG improvement
• Cleaner burn and improved atomization
• Safe for stock trucks
• True drop-in replacement

Features

• Balanced and flow-matched set of 8 nozzles
• Dynomite Diesel K-Factor technology with Advanced Flow Machining and precision honing
• Optimized orifice geometry for smoother, faster fuel flow and better atomization
• New copper sealing washers included
• Designed for use with existing injectors in good condition

Fitment

2006–2007 Chevrolet Silverado 2500HD / 3500HD and GMC Sierra 2500HD / 3500HD with 6.6L Duramax LBZ diesel.

Installation Notes

These nozzles should be installed and the injectors calibrated by a professional shop experienced with oversized injectors. A pyrometer (EGT gauge) is strongly recommended to monitor exhaust gas temperatures. Horsepower gains are most consistent when installation and calibration are performed to Dynomite Diesel standards and any supporting modifications are in place.

Sold as a complete balanced and matched set.