EvilFab - Cummins Race series S400 Single Turbo kitS400 single turbo kit (AKA 2nd gen swap) is fabricated with high quality 304 stainless steel tubing and cnc flanges. 5" polished stainless intake and high flow black air filter with mandrel bent plumbing keep the air supply unrestricted to and from the turbo. To top it off we include an exhaust housing heat blanket to protect sensitive components and reducing spool time. This ensures you have the highest quality, best fitting product available.