2004.5-2007 5.9 Cummins S400 Turbo High Mount 2nd Gen Swap Kit Illusion Purple Two Stage Powder Coating WCFab

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S400 Single Turbo Install Kit, for 2011-2016 Duramax LML, Fluorescent Yellow

  • Sold As Kit
  • Finish Type Powder Coated
  • Finish Color Fluorescent Yellow


  • NOTE: Down pipe is designed for Half Marmon style S400 exhaust outlet; 4.6 Inch Diameter flat flange. NOT compatible with HX40 style exhaust outlet flanges.
  • NOTE: Down pipe comes standard with V-band style connection on bottom to connect with exhaust system. If you want 3 bolt flange style connection it is an additional 75.00 Dollar
  • 5 Inch Intake with Dry Air Filter and Outerwears Pre-Filter Cover
  • T4 Pedestal and Spacer with Hardware
  • Stainless Steel Oil Feed and Drain Lines with Fittings
  • 3 Inch Fabricated High Flow Y-Bridge, Hot and Cold Side Intercooler Pipes
  • 3 Inch Down Pipe with High Temp Coating (Mates to exhaust system flange). Includes heat wrap and clamps.
  • Coolant Bypass Kit for Rear Cover
  • Silicone Boots, T-Bolt Clamps, and V-Band Clamps
  • Custom Two Stage Powder Coating

This kit will allow you to install an S400 based Turbo on your 2011-2016 LML Duramax. Replacing all of the OEM plumbing and y-bridge with high flow 3 Inch diameter piping and one piece Y-bridge. Oil Lines are high quality stainless steel braided Parker Lines with the oil feed line routing from the main oil galley on the side of the engine block. We designed our down pipe to connect with your exhaust system V-Band and clamp which simplifies installation and does not require you to cut your exhaust system. If you are not purchasing the turbo from us you must specify the brand of turbo you are using, some Turbo's you may be required to ship to use for mock up to build the kit. Each turbo kit is hand built in house by our experienced fabricators and welders. Every part is built and test fit on an engine to ensure proper fitment.