Your Cart (0)
Thumbnail Filmstrip of LLY Duramax Reman 50HP Injector Set (20% Over) DDP LLY-50 Images
DDP LLY-50 Remanufactured Injector Set – 20% Over / ~50 HP Gain
Upgrade your 2004.5–2005 LLY Duramax with a balanced, drop-in remanufactured injector set that adds roughly 50 rear-wheel horsepower while staying friendly on the street. These 20% over injectors deliver noticeable extra power, sharper throttle response, and strong everyday drivability without requiring extra hardware.
Each set is remanufactured, flow-tested, and sold as a fully matched group of eight injectors so every cylinder receives consistent fuel. SAC-style nozzles promote efficient spray and clean combustion. They are designed as a direct replacement—no additional vehicle upgrades are needed for installation.
On a stock or lightly modified truck they provide a solid ~50 RWHP bump and maintain excellent street manners plus fuel economy. With supporting modifications they can support substantially higher power levels (well into the 575–625+ RWHP range depending on the rest of the build). Tuning is recommended for proper calibration; a pyrometer is advised to monitor exhaust temperatures.
Key Features
- 20% increased flow over stock
- Approximately 50 RWHP gain
- Balanced and matched set of 8
- Remanufactured with quality components
- Drop-in replacement
- Strong street manners and MPG
- SAC-style nozzles
Fitment
- 2004.5–2005 Chevrolet Silverado 2500HD / 3500HD 6.6L Duramax LLY
- 2004.5–2005 GMC Sierra 2500HD / 3500HD 6.6L Duramax LLY
DDP LLY-50 Remanufactured Injector Set – 20% Over / ~50 HP Gain
Upgrade your 2004.5–2005 LLY Duramax with a balanced, drop-in remanufactured injector set that adds roughly 50 rear-wheel horsepower while staying friendly on the street. These 20% over injectors deliver noticeable extra power, sharper throttle response, and strong everyday drivability without requiring extra hardware.
Each set is remanufactured, flow-tested, and sold as a fully matched group of eight injectors so every cylinder receives consistent fuel. SAC-style nozzles promote efficient spray and clean combustion. They are designed as a direct replacement—no additional vehicle upgrades are needed for installation.
On a stock or lightly modified truck they provide a solid ~50 RWHP bump and maintain excellent street manners plus fuel economy. With supporting modifications they can support substantially higher power levels (well into the 575–625+ RWHP range depending on the rest of the build). Tuning is recommended for proper calibration; a pyrometer is advised to monitor exhaust temperatures.
Key Features
20% increased flow over stock
Approximately 50 RWHP g[...]
DDP LLY-50 Remanufactured Injector Set – 20% Over / ~50 HP Gain
Upgrade your 2004.5–2005 LLY Duramax with a balanced, drop-in remanufactured injector set that adds roughly 50 rear-wheel horsepower while staying friendly on the street. These 20% over injectors deliver noticeable extra power, sharper throttle response, and strong everyday drivability without requiring extra hardware.
Each set is remanufactured, flow-tested, and sold as a fully matched group of eight injectors so every cylinder receives consistent fuel. SAC-style nozzles promote efficient spray and clean combustion. They are designed as a direct replacement—no additional vehicle upgrades are needed for installation.
On a stock or lightly modified truck they provide a solid ~50 RWHP bump and maintain excellent street manners plus fuel economy. With supporting modifications they can support substantially higher power levels (well into the 575–625+ RWHP range depending on the rest of the build). Tuning is recommended for proper calibration; a pyrometer is advised to monitor exhaust temperatures.
Key Features
- 20% increased flow over stock
- Approximately 50 RWHP gain
- Balanced and matched set of 8
- Remanufactured with quality components
- Drop-in replacement
- Strong street manners and MPG
- SAC-style nozzles
Fitment
- 2004.5–2005 Chevrolet Silverado 2500HD / 3500HD 6.6L Duramax LLY
- 2004.5–2005 GMC Sierra 2500HD / 3500HD 6.6L Duramax LLY
California Restricted
Fits: LLY Duramax 2004.5-2005