Blue Silicone 350F CAC Hose, 3.25" ID, 6" L SHH60-BLACK measure the outside diameter of

measure the outside diameter of your hose AFTER it is installed on the tubing

This is critical to prevent the hose from coming off under pressure

The 4-ply reinforcement results in a 5mm wall thickness (86mm / 3 3/8" and 73mm / 2 7/8" OD) and a working pressure rating over 15 psi (78 psi burst pressure)

5mm wall thickness (125mm / 4 15/16" OD)

These 135 degree elbows have a 2 3/4" ID with a smooth

Blue Silicone 350F CAC Hose, 3.25" ID, 6" L SHH60-BLACK measure the outside diameter 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 42 psi (170 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