2004.5-2005 LLY Duramax S300 Single Turbo Install Kit Metallic Candy Blue Two Stage Powder Coating WCFab

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These Kits Are The Perfect Solution For Trucks With Bigger Turbo Kits And Injectors That Have Reached The Limits Of The Stock HP4 Pump And Are In Search Of More Power.

12 Mm (WCF100457)- Works Best With Our S472 And S476 Kits With Exergy 100 Percent Over Injectors And Has Been Proven To Reliably Support Over 1000 Whp In Our Regular Cab Shop Truck.


  • Custom Exergy 12 Mm CP3 Pump Specific To This Kit
  • Billet Aluminum, Black Anodized CP3 Pump Mount Plate
  • High Pressure Fuel Line
  • High Pressure Rail Fitting
  • Fuel Line And Clamps
  • Stainless CP3 Barb Fitting
  • Stainless Hardware
  • Requires Use Of An Aftermarket Low Pressure / CP3 Compatible Lift Pump. Not Compatible With Oem L5P In-Tank Pump Or High Pressure Lift Pumps Designed For Use With HP4 Injection Pumps.

Note: Custom Tuning Is Required. This Is A Racing Product For Competition Use Only.


  • Fitment 2017-2020 Chevrolet / GMC 6.6 Duramax
  • Warranty 12 Months
  • Sold As Kit
  • Country of Origin USA
  • Size 12 Mm
  • Fuel Pump CP3
  • Fitting Type Stainless Steel Barb Fitting
  • Mount Finish Anodized
  • Mount Color Black
  • Material Billet Aluminum
  • Engine Duramax
  • Liter 6.6 Liter
  • Engine Code L5P
  • Engine Manufacturer GMC/Chevrolet
  • Engine Years 2017-2020
  • Fuel Type Diesel