LMM Duramax Remanufactured 50HP Injector Set (20% Over) – DDP LMM-50

Upgrade your 2007.5–2010 6.6L LMM Duramax with the Dynomite Diesel Products (DDP) LMM-50 remanufactured injector set. These precision-built injectors flow 20% more fuel than stock and deliver approximately 50 rear-wheel horsepower over factory output while remaining fully compatible with a stock truck.

Each injector is remanufactured using new OE-quality components, then balanced and matched as a complete set of eight for smooth, consistent cylinder-to-cylinder performance. The result is stronger throttle response, improved drivability, and excellent street manners without sacrificing everyday fuel economy. They are a true drop-in replacement that works with the factory CP3 pump and turbo—no additional fuel-system upgrades required for daily use or light towing.

With supporting modifications these injectors are capable of supporting 625–650 RWHP. A pyrometer is recommended to monitor exhaust gas temperatures.

Key Features

• 20% over-stock fuel flow
• ~50 RWHP gain
• Supports 625–650 RWHP with proper supporting mods
• Remanufactured with new OE components
• Fully balanced and matched set of 8
• SAC-style nozzles for efficient spray and reduced smoke
• Safe for stock trucks
• Drop-in installation
• Excellent street manners and MPG

Fitment 2007.5–2010 Chevrolet Silverado / GMC Sierra 2500HD & 3500HD 6.6L Duramax LMM

Sold as a complete matched set.