Blue Silicone 350F CAC Reducer Hose, 4.00 x 3.50" ID, 6" L RE9025 Lengths can be screwed together

Lengths can be screwed together to form a continuous length if you've got leftovers around

Temperature rating: 300°F continuous

The 3-ply reinforcement results in a working pressure rating in excess of 65 psi and a 4mm wall thickness (27mm / 1 1/16" OD)

25 and 3613-1

63 1 1/2" 38mm 1

Blue Silicone 350F CAC Reducer Hose, 4.00 x 3.50" ID, 6" L RE9025 Lengths can be screwed togetherCharge 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