Chevy Duramax 04.5-05 LLY Brand New 200% Over Injector Set (SAC Nozzles) Dynomite Diesel

This Dynomite Diesel 200% over injector set is built for the 2004.5-2005 Chevrolet Silverado and GMC Sierra 2500 HD/3500 with the 6.6L Duramax LLY engine. It is the most street-oriented of the larger LLY sizes, giving owners a solid fueling upgrade over stock.

Each set is made from brand-new OE injectors rather than remanufactured cores and is supplied balanced and flow-matched for the V8. The nozzles are six-hole SAC units set at 158 degrees, paired with modified injector bodies sized for 200% over stock delivery.

Owners generally pick this size for daily drivers, tow trucks, and mild builds that want noticeably more power and fuel headroom while keeping drivability and manners intact.

This is not a stock drop-in replacement. It performs best with custom tuning and a healthy fuel supply system, and it is not for sale in California. The set is covered by a 3 year unlimited-mileage warranty. Confirm sizing with your tuner before ordering, since Dynomite Diesel is not responsible for damage from an incorrectly sized set.

For an LLY owner stepping up from stock injectors, the 200% over set offers a strong balance of added power and everyday usability.