Blue Silicone 350F CAC Hose, 2.50" ID, 6" L Inch_3 1/4 Slide the large end of

Slide the large end of the reducing elbow over the nipple on the coolant reservoir

black only

Slide the small end of the reducing elbow onto the aluminum joiner

5" to 5" ID hose to support it for easy cutting

5mm wall thickness (113mm / 4 7/16" and 87mm / 3 7/16" OD) and a working pressure rating over 8 psi (42 psi burst pressure)

Blue Silicone 350F CAC Hose, 2.50" ID, 6" L Inch_3 1/4 Slide the large end ofCharge Air Cooler (CAC) hose is specifically designed to handle the higher temperatures and pressures in high performance turbo and supercharged applications. Four layers of polyester reinforcement and 3 reinforcing rings allow operating pressures of 50 psi (199 psi burst pressure) and temperatures up to 350 F (180 C). Note that this temperature rating is best suited to the "cold" (post intercooler) side of the system. This hose is color coded Blue