Silicone Hose, 1 1/2 x 1" 45 deg. Reducing Elbow Color:Red It is designed specifically for

It is designed specifically for connecting 4 1/2" (114mm) OD metal intake pipes

38 3 1/4" 83mm 3

The 35mm ID at one end and 32mm ID at the other end let you connect a 1 3/8" OD tube to a 1 1/4" OD tube

so this hose is popular as engine intake plumbing on normally-aspirated applications

Silicone Hose, 1 1/2 x 1" 45 deg. Reducing Elbow Color:Red It is designed specifically forOur silicone hose is built for endurance and performance in custom coolant and intake plumbing applications. Each hose is hand crafted from multiple layers of silicone rubber with polyester reinforcing fabric between the layers. The silicone rubber remains flexible and tough from 50 C to +180 C ( 76 F to 356 F). The outside has a smooth, shiny, "wipe down" finish that is easy to keep clean. These 45 degree reducer elbow hoses have a 38mm ID at one end