Dynomite Diesel LLY-ECO Economy Series Reman Injector Set | 2004.5-2005 GM Silverado/Sierra 2500HD/3500HD 6.6L Duramax LLY

Features:

• Fits 2004.5–2005 LLY Duramax engines
• Remanufactured for cost-effective performance
• Economy series with mild 10–20 RWHP gain
• Full injector balancing for smoother operation
• Tighter tolerances than OEM specifications
• Improved throttle response and driveability
• Delivers excellent fuel mileage and efficiency
• Minimal to no smoke under normal driving
• Safe upgrade for stock engines
• Diesel-specific injector set
• Not legal for sale in California
• Built for daily driving and light towing

Give Your Duramax The Clean Power It Deserves

If your LLY Duramax isn’t running like it used to, upgrading to the Dynomite Diesel Economy Series Reman Injector Set might be just what your truck needs. Designed specifically for 2004.5–2005 Silverado and Sierra HD models, this set is perfect for stock trucks that need a reliable refresh without going overboard. You’ll get a mild but noticeable bump of 10–20 rear-wheel horsepower, better throttle response, and smoother operation all around. These injectors are a solid upgrade for daily drivers or tow rigs that need dependable performance without added smoke or reduced fuel economy. In fact, most drivers report excellent MPG with virtually no smoke, even under load. It’s also a safe bet if you’re trying to extend the life of your engine without worrying about emissions tuning or pushing your truck too far. Built for longevity and balance, this set gives you that just-right performance boost without compromising reliability. It’s a quiet upgrade that makes a big difference behind the wheel.

Precision Balanced Injectors Built For Smooth Operation

The Dynomite Diesel LLY-ECO Injector Set is a remanufactured solution engineered to restore and enhance the performance of 2004.5–2005 GM 6.6L Duramax LLY engines. Each injector in this Economy Series set is rebuilt to exacting standards and balanced to significantly tighter tolerances than OEM units. This ensures more uniform fueling across all cylinders, resulting in smoother idle quality, cleaner combustion, and improved overall drivability. The injectors are rated for a mild 10–20 horsepower increase at the rear wheels, offering enhanced responsiveness without over-fueling or adding unnecessary strain to the engine. This makes the set ideal for stock applications or light towing scenarios where durability and efficiency matter most. Built for 12V diesel systems, these injectors help improve fuel economy and reduce smoke output during normal use. The set is safe for factory tuning and daily use, but not legal for sale in California due to emissions regulations. For LLY owners looking for cost-effective performance with OEM-level reliability, this injector set is a smart investment.

Fits: 2004.5, 2005 GM Silverado/Sierra 2500HD/3500HD 6.6L Duramax LLY

Notes:

• Designed specifically for 2004.5–2005 6.6L Duramax LLY engines
• Remanufactured injectors using economy-grade specifications
• Provides a mild 10–20 RWHP performance increase
• Injectors balanced to tighter tolerances than OEM units
• Improves throttle response and overall drivability
• Excellent fuel mileage with minimal to no smoke output
• Safe for use on stock, unmodified trucks
• Ideal for daily driving and light towing applications
• Not for sale or use in California due to emissions regulations
• Intended for use with diesel fuel systems only