On Sale

EvilFab - Cummins S300/S400 Over Under Compound Kit

Sale price

Regular price $4,899.00
( / )
Turbo Sizes

Complete side mount style S300/S400 compound kit! This kit is fabricated in house with high quality 304 stainless steel tubing and flanges, then test fit on one of our mock up trucks so fitment is always spot on. Kit works around factory shock tower, ac lines and coolant tank. Black Braided oil lines with high pressure AN style connections ensure a leak free oiling system. 100% v-band connections will ensure you don't blow any silicone couplers making this kit the most reliable on the market. Comes as complete piping with accessories, turbos and manifold (if chosen).

850 HP S363/S475: Great for a hot street daily driver/tow rig with quick spool up. 

1000 HP Billet S366/S480: Great for guys who want the most out of their hot street daily driver/tow rig with quick spool up looking for 4 digit power.


Our Kit Includes

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

Due to high volume of orders, some kits are built to order, please allow 20-30 business days for kits to ship. All sales are final. 


Built on and fits best with steed speed t4 angled manifold.