Industrial 0986435504SEDFLY Reman Dragon Fly 15% Over Injector | 2004.5-2005 GM Silverado/Sierra 2500HD/3500HD 6.6L Duramax LLY

Features:

• 15% over for mild performance boost
• Adds approximately 50 horsepower gain
• Ideal for light towing and daily driving
• Fits 2004.5–2005 LLY Duramax engines
• Precision remanufactured to OEM standards
• Compatible with stock fuel systems
• Improved throttle response and fuel delivery
• Balanced for consistent spray and performance
• Sold individually for easy replacement
• Requires 8 injectors for a complete set
• Core charge refundable with rebuildable cores
• Built to order with variable lead times

Get A Clean Power Boost Without Going Overboard

If you’re looking to wake up your Duramax without jumping into a full-blown race build, the Industrial Injection Dragon Fly 15% Over Injector is a perfect step in the right direction. This remanufactured injector gives your 2004.5–2005 LLY 6.6L Duramax about 50 extra horsepower, enough to feel a noticeable difference without sacrificing everyday drivability. It’s great for truck owners who tow occasionally or just want a bit more punch from their setup while keeping things reliable and manageable. Since it’s designed to work with the factory fuel system, there’s no need to overhaul your entire truck just to enjoy better throttle response and cleaner fuel delivery. You get that extra performance edge while still holding onto the longevity and smoothness that stock-like injectors provide. It’s sold individually, so whether you’re replacing a single unit or ordering a full set of eight, you’ve got flexibility. With a refundable core charge and trusted remanufacturing from Industrial Injection, this upgrade makes a lot of sense for real-world performance.

Engineered To Balance Street Power And Precision Flow

The Industrial Injection 0986435504SEDFLY Dragon Fly Injector is a remanufactured unit built to deliver a 15% over increase in fuel output, offering approximately 50 horsepower over stock levels. It’s tailored for the 2004.5–2005 GM Silverado and Sierra 2500HD/3500HD models equipped with the 6.6L Duramax LLY engine, ensuring proper fit and fuel system compatibility. Each injector is carefully rebuilt and flow-balanced to meet strict quality standards, helping maintain consistent fuel atomization and combustion. This makes it ideal for users who want enhanced performance without pushing the limits of their turbo or transmission. Since the injectors are compatible with stock fuel system components, installation does not require custom tuning or modifications, although tuning can further optimize gains. Because these are built to order, customers should be aware that lead times can vary depending on core availability. A refundable core charge applies, provided that returned units are in rebuildable condition. This injector bridges the gap between stock reliability and mild performance enhancements with confidence.

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

Notes:

• Injector is remanufactured and built to order
• Stock levels may vary depending on core availability
• 15% over injector provides approximately 50 horsepower gain
• Designed for 2004.5–2005 GM 6.6L Duramax LLY engines
• Core charge applies at purchase and is refundable
• Refund is issued only if cores are rebuildable and reusable
• Sold individually, must purchase 8 for a complete set
• Suitable for mild performance upgrades and towing setups
• Works with stock fuel system components
• May benefit from tuning for optimized performance