Product Description
The DDP NLLY-200 Injector Set is designed for Duramax owners building serious race trucks. Delivering 200% more fuel than stock, these injectors are capable of supporting 1,300–1,500+ horsepower, making them ideal for drag racing, sled pulling, and max-effort competition builds.
These aren’t generic mass-produced injectors — DDP uses genuine Bosch LBZ-style bodies modified with EDM-cut nozzles, honed internals, and meticulous flow-balancing to guarantee precision fueling under extreme load and RPM.
Vehicle Fitment
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2004.5–2005 Chevrolet Silverado 2500HD / 3500HD
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2004.5–2005 GMC Sierra 2500HD / 3500HD
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With 6.6L LLY Duramax Engine (mid-year 2004.5 and 2005 only)
Race Use Only – Not for Emissions-Equipped or Street-Driven Trucks
Requires extensive engine and fuel system upgrades
Performance Features
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200% Over Stock Fuel Flow – Extreme fueling for high-horsepower builds
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Flow-Matched & Balanced – For consistent power delivery
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Supports 1,300–1,500+ HP – With proper air/fuel support
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EDM-Honed Nozzles + Modified Internals
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Based on Genuine Bosch Reman Cores
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Assembled and tested in the USA by DDP’s expert team
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Backed by a limited 1-year warranty (Excludes competition use failures)
Required Supporting Modifications
To operate this injector set reliably and effectively, your build should include:
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Dual CP3 or high-flow stroker pump
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250+ GPH lift pump system (AirDog or FASS recommended)
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Large-frame single or compound turbo setup (S400+ recommended)
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Built transmission with billet internals
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EFI Live or MM3 custom tuning
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O-ringed or fire-ringed heads with ARP or stronger head studs
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Upgraded intercooler, intake piping, and 4" or 5" exhaust system
Why Choose DDP?
Dynamite Diesel Performance has long been a trusted name in premium diesel fuel system components, delivering unmatched precision and race-winning reliability. Their injectors are handcrafted in the USA, tested, balanced, and verified to flow accurately across all cylinders — a must for high-performance and race applications.
Take Your LLY Duramax to the Finish Line
The DDP NLLY-200 Injector Set is built for serious racers and diesel builders who want nothing less than max power and performance. If you're chasing records or building a dedicated competition truck, this is your injector set.
