On Sale

EvilFab - Cummins 2003-2007 S400/S400 Over Under Piping Kit

Sale price

Regular price $1,899.00
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S400/S400 compound piping kit! If you already have turbos and manifold this kit is what you need. This kit is fabricated in house with high quality steel tubing and flanges, then test fit on one of our mock up trucks so fitment is always spot on. Fits around factory battery, shock tower, ac lines and coolant tank. Black Braided oil lines with high pressure AN style connections ensure a leak free oiling system. Kit comes as complete piping with accessories, minus turbos and manifold. Made to work when pairing T4 S400 5" standard cover and T6 S400 5" standard cover turbos.

Our Kit Includes

  • 5" Intake
  • 4" Downpipe
  • 3.5" Hot Pipe
  • 3.5" Charge Pipe
  • 3" Intercooler Tubing
  • Black AN Style Oil Lines and Fittings
  • Cleanable High Flow Air Filter
  • Clamps, Hardware, Gaskets & O-Rings
  • Manifold Spacer
  • Coolant Re-route
  • HD Silicone Couplers


Due to high volume of orders, some kits are built to order, please allow 10-15 business days for raw kits and 15-30 days for coated kits to ship. All sales are final. 

Powder Coating:

If you have selected to add powder coating, please email with desired prismatic color. We coat turbo(s), tubing, and t bolt clamps the color of choice and v band clamps gloss black.