K-Tuned NEW - K24 Upper Coolant Housing w/o Filler Neck - Includes Hose End - KUW-24S-N03Applications: K20Z3 K24 heads Feature: 1. 25 Hose End Fitting a 16OR (O Ring) Outlet and a 12OR (O Ring) Filler Inlet Note: 16an fitting available as add on Excludes K24A1, K24Z and K24Y Series Designed to provide greater clearance for sidewinder turbo manifolds There will be a fitment issues with the K20 Upper coolant housing and Jackson Racing Superchargers. Does not come with radiator cap, it is an optional item Here is the K Tuned Upper Coolant