Blue Silicone 350F CAC Hose, 4.50" ID, 6" L SHC57-RED-04 Slide the small end of

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

75 and 3613-2

Use them to connect any two 70mm ID hoses: an elbow to a straight section

The 83mm ID at one end and 57mm ID at the other end let you connect a 3 1/4" OD tube to a 2 1/4" OD tube

It is designed specifically for connecting a 3 1/2" (89mm) OD metal intake pipe to a 2 1/2" (63mm) OD pipe

Blue Silicone 350F CAC Hose, 4.50" ID, 6" L SHC57-RED-04 Slide the small 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 35 psi (142 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