Dynomite Diesel DDP-LB7-50 25% Over 50HP Remanufactured Injector Set – 2001-2004 LB7 Duramax

Upgrade your 2001-2004 6.6L LB7 Duramax with the Dynomite Diesel DDP-LB7-50 remanufactured injector set. These 25% over injectors deliver approximately 50 rear-wheel horsepower over stock while remaining safe for daily-driven and stock trucks. They support 600+ RWHP with proper supporting modifications and are designed for excellent street manners, smooth operation, and strong fuel economy.

Each complete set of 8 injectors is remanufactured using new OE-quality internal components, then precision-balanced and flow-matched for even cylinder-to-cylinder performance. The result is a noticeable power increase, improved throttle response, and cleaner, more efficient combustion compared to worn factory injectors.

Key Features

• 25% over stock flow for roughly +50 RWHP
• Capable of supporting higher power levels with supporting mods
• Safe for stock trucks with little to no additional modifications
• Excellent drivability, idle quality, and MPG
• Ideal for mild performance upgrades and towing applications
• Balanced and matched set of 8 remanufactured injectors
• Built with new OE internals and precision-honed nozzles for better atomization

Fitment 2001–2004 Chevrolet Silverado 2500HD/3500HD and GMC Sierra 2500HD/3500HD with 6.6L Duramax LB7.

A pyrometer is recommended to monitor exhaust gas temperatures. LB7 injector lines are prone to rust; replacing them during installation is strongly advised if they have not been changed in the last 40,000–50,000 miles.