6.6L LLY (2004.5-2005) Duramax

S&S Upgrades Proprietary nozzle honing process for clean and consistent holes Nozzles flow-matched to 1% variance per set, using OE standards Viscor SAE-J967 40 degrees C 100 bar Injectors flow-matched to 3% variance per set Viscor SAE-J967 40 degrees C 4 different pressure/energizing points...

S&S Upgrades Proprietary nozzle honing process for clean and consistent holes Nozzles flow-matched to 1% variance per set, using OE standards Viscor SAE-J967 40 degrees C 100 bar Injectors flow-matched to 3% variance per set Viscor SAE-J967 40 degrees C 4 different pressure/energizing points...

S&S Upgrades Proprietary nozzle honing process for clean and consistent holes Nozzles flow-matched to 1% variance per set, using OE standards Viscor SAE-J967 40 degrees C 100 bar Injectors flow-matched to 3% variance per set Viscor SAE-J967 40 degrees C 4 different pressure/energizing points...

S&S Upgrades Proprietary nozzle honing process for clean and consistent holes Nozzles flow-matched to 1% variance per set, using OE standards Viscor SAE-J967 40 degrees C 100 bar Injectors flow-matched to 3% variance per set Viscor SAE-J967 40 degrees C 4 different pressure/energizing points...

HSP 2004.5-2005 Chevrolet / GMC Max Air Flow Bundle Part Number: 283-HSP The HSP Max Air Flow Bundle is designed for 2004.5-2005 LLY Duramax-equipped Chevrolet and GMC trucks. This kit includes nearly everything HSP Diesel offers for these trucks, making it a powerful upgrade...

HSP 2004.5-2005 Chevrolet / GMC Intercooler Charge Pipe Bundle Part Number: 282-HSP This bundle is designed for the LLY Duramax-equipped 2004.5-2005 Chevrolet and GMC trucks. The Intercooler Charge Pipe Bundle is one of the best starting points when modifying your LLY Duramax for both...

When installing a bottom sump with your AirDog or Fass Pump most trucks end up with an open fuel supply and or return line. Our 1/2", 3/8" or 5/16" aluminum plug will cap off these lines with ease, to keep fuel from seeping out...

- Highest lubricity rating of the 17 brands tested.- Level “A” rating in NACE corrosion test.- Increases life of high pressure fuel system components.- Boosts cetane up to 5 points.- Increases fuel economy up to 10%.- Maintains clean injectors.- Separates moisture for more thorough...

Having cold start troubles? Give Exergy Performance Winter Blend Diesel Fuel Additive a try!Winter Blend provides the ultimate in protection and longevity for diesel injectors and fuel pumps by increasing the fuel’s lubricity to exceed the recommendations of the Engine Manufacturers Association and provides...

Having cold start troubles? Give Exergy Performance Winter Blend Diesel Fuel Additive a try!Winter Blend provides the ultimate in protection and longevity for diesel injectors and fuel pumps by increasing the fuel’s lubricity to exceed the recommendations of the Engine Manufacturers Association and provides...

Having cold start troubles? Give Exergy Performance Winter Blend Diesel Fuel Additive a try!Winter Blend provides the ultimate in protection and longevity for diesel injectors and fuel pumps by increasing the fuel’s lubricity to exceed the recommendations of the Engine Manufacturers Association and provides...

- Highest lubricity rating of the 17 brands tested.- Level “A” rating in NACE corrosion test.- Increases life of high pressure fuel system components.- Boosts cetane up to 5 points.- Increases fuel economy up to 10%.- Maintains clean injectors.- Separates moisture for more thorough...

- Highest lubricity rating of the 17 brands tested.- Level “A” rating in NACE corrosion test.- Increases life of high pressure fuel system components.- Boosts cetane up to 5 points.- Increases fuel economy up to 10%.- Maintains clean injectors.- Separates moisture for more thorough...

6 braided stainless oil supply line to run your turbo oil supply from the side of the engine block. This eliminates starving the rear camshaft bushing of oil through the factory turbo oil supply. Includes adapter fittings for both the turbo end and the...

Our Duramax oil drain line will work on any 2001-2016 Duramax. We use high quality braided stainless lines with billet aluminum adapters for both engine and turbo end of the lines. The turbo oil drain flange at the turbo has a high-quality O-ring seal...

This braided stainless steel turbo oil drain line kit is designed to specifically work with a stock Duramax turbo setup and replace the hard stock steel line! Part # GRD661026 Key Features: Compatible with: Duramax, Engine & Engine Parts