CSF Gen 2 B58 Race X Charge-Air-Cooler Manifold - Thermal Black Finish - 8400B

Two 1/8" NPT ports are located on the top of the back water plate. These ports can be used to measure inlet/outlet water temps as well as used as breather ports to help in the bleeding procedure. 1/8th NPT plugs come included in the supplied hardware kit. Please follow OEM BMW or Toyota bleeding procedure which takes roughly 15 minutes to complete.