Product Description
The DDPLBZ-200 injector set by Dynamite Diesel Performance is built for serious Duramax LB7 owners aiming for elite horsepower numbers. These 200% over injectors are crafted from brand-new OE injector bodies, flow-matched, and calibrated for consistent high-RPM fueling and race-level output. Expect over 1,000 HP capability when paired with proper air, fuel, and tuning.
This injector set is intended for off-road and competition use only and requires a fully built supporting fuel system and engine.
Vehicle Fitment
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2001–2004 Chevrolet Silverado 2500HD / 3500HD
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2001–2004 GMC Sierra 2500HD / 3500HD
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Equipped with 6.6L Duramax LB7 engine
Not emissions compliant – for race/competition use only
Professional tuning, dual CP3s, and built engine required
Not recommended for towing or daily driving
Key Features
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200% over injector flow – ideal for high-HP race builds
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Constructed from new OEM injectors (not reman)
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Flow-balanced to within 1% for optimal cylinder efficiency
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Supports 1,000–1,200+ HP with proper setup
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Hand-assembled, calibrated, and tested in the USA
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Core charge applies (return required)
Recommended Supporting Mods
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Dual CP3 injection pumps or 14mm stroker pump
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High-volume lift pump (FASS/AirDog 200–260 GPH)
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Custom tuning (EFI Live or similar)
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Built bottom-end and transmission
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Large single or compound turbo setup
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EGT/boost monitoring and safety systems
For competitive LB7 builds that need aggressive fueling without compromise, the DDPLBZ-200 injector set is a proven foundation for making four-digit horsepower and dominating at the track or pull line.
