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Dynomite Diesel LLY Duramax Economy Series Brand New Injector Set (NLLY-ECO)
Upgrade your 2004.5–2005 6.6L LLY Duramax with this brand-new Economy Series injector set from Dynomite Diesel. These injectors are precision-balanced and flow-matched to much tighter tolerances than typical OEM units, delivering a mild 10–20 rear-wheel horsepower increase along with smoother engine operation and improved throttle response.
The result is more even fuel delivery across all cylinders, reduced harshness and vibration, little to no visible smoke, and excellent fuel economy. Because they stay within factory operating parameters, they work as a direct drop-in replacement on stock trucks with no additional modifications, supporting upgrades, or custom tuning required.
This is a complete brand-new set of 8 injectors (no core charge) engineered for daily-driven reliability. Dynomite Diesel builds these in Idaho using high-quality components for long-term durability and consistent performance.
Key Features
- Brand new, no-core injector set
- Mild 10–20 RWHP gain
- Fully balanced and flow-matched to tighter tolerances than OEM
- Smoother idle and operation
- Sharper throttle response
- Little to no smoke
- Strong fuel economy
- Safe for stock trucks and factory fuel systems
- Direct replacement — no extra mods needed
Fitment 2004.5–2005 Chevrolet Silverado 2500HD / 3500HD and GMC Sierra 2500HD / 3500HD with 6.6L LLY Duramax diesel.
Ideal for owners replacing worn injectors or wanting a noticeable improvement in drivability and efficiency without turning the truck into a high-performance build. Backed by Dynomite Diesel’s reputation for quality and a manufacturer 3-year warranty.
Dynomite Diesel LLY Duramax Economy Series Brand New Injector Set (NLLY-ECO)
Upgrade your 2004.5–2005 6.6L LLY Duramax with this brand-new Economy Series injector set from Dynomite Diesel. These injectors are precision-balanced and flow-matched to much tighter tolerances than typical OEM units, delivering a mild 10–20 rear-wheel horsepower increase along with smoother engine operation and improved throttle response.
The result is more even fuel delivery across all cylinders, reduced harshness and vibration, little to no visible smoke, and excellent fuel economy. Because they stay within factory operating parameters, they work as a direct drop-in replacement on stock trucks with no additional modifications, supporting upgrades, or custom tuning required.
This is a complete brand-new set of 8 injectors (no core charge) engineered for daily-driven reliability. Dynomite Diesel builds these in Idaho using high-quality components for long-term durability and consistent performance.
Key Features
Brand new, no-core injector set
Mild 10–20 RWHP gain
Fully balanced and flow-matched to tighter tolerances than OEM
Smoot[...]
Dynomite Diesel LLY Duramax Economy Series Brand New Injector Set (NLLY-ECO)
Upgrade your 2004.5–2005 6.6L LLY Duramax with this brand-new Economy Series injector set from Dynomite Diesel. These injectors are precision-balanced and flow-matched to much tighter tolerances than typical OEM units, delivering a mild 10–20 rear-wheel horsepower increase along with smoother engine operation and improved throttle response.
The result is more even fuel delivery across all cylinders, reduced harshness and vibration, little to no visible smoke, and excellent fuel economy. Because they stay within factory operating parameters, they work as a direct drop-in replacement on stock trucks with no additional modifications, supporting upgrades, or custom tuning required.
This is a complete brand-new set of 8 injectors (no core charge) engineered for daily-driven reliability. Dynomite Diesel builds these in Idaho using high-quality components for long-term durability and consistent performance.
Key Features
- Brand new, no-core injector set
- Mild 10–20 RWHP gain
- Fully balanced and flow-matched to tighter tolerances than OEM
- Smoother idle and operation
- Sharper throttle response
- Little to no smoke
- Strong fuel economy
- Safe for stock trucks and factory fuel systems
- Direct replacement — no extra mods needed
Fitment 2004.5–2005 Chevrolet Silverado 2500HD / 3500HD and GMC Sierra 2500HD / 3500HD with 6.6L LLY Duramax diesel.
Ideal for owners replacing worn injectors or wanting a noticeable improvement in drivability and efficiency without turning the truck into a high-performance build. Backed by Dynomite Diesel’s reputation for quality and a manufacturer 3-year warranty.