BD Diesel 2004-2006 Chevy 6.6L Duramax LLY Premium Stock Injector

When you're looking to get more out of your 2004-2006 Chevrolet Silverado 2500 HD with the 6.6L Duramax LLY engine, these BD-Built Performance injectors are a solid option. You'll receive a set of four common rail (CR) fuel injectors, each precision calibrated and tested to ensure they perform as expected. These are designed to increase fuel delivery, which translates to a notable horsepower boost for your truck.

BD Diesel assembles these injectors using OE procedures, and each one is calibrated and tested to ensure perfect operation. They come with new Bosch nozzles and control valves, and the OE quality nozzles are extrude honed for improved fuel flow and atomization. This process helps the fuel spray more evenly, leading to better combustion. Each injector is tested on a Bosch 815 test bench across over eight operating conditions to verify performance within a +/-2% flow tolerance, which is tighter than the OEM's +/-5% tolerance.

These Stage 1 injectors are rated to support an increase of approximately 60 horsepower over stock, with a fuel quantity increase of about 33%. If you're looking for a straightforward way to add power to your Duramax, these injectors are a well-built choice.