Red 2.75" &gt; 3" Rubber Reducer hose for shortram cold air intake kit cool ram Great for using with DIY custom air intakes. This kit includes 1 x Rubber Reducer. Hose Inside Diameter: 2.75" &gt; 3" ( 70mm &gt; 76mm ). Fits on pipe or tubing with 2.75" or 3" outside diameter. Hose Length: 3" (76mm) Material: Rubber. Color: Red Since the rubber hose is made with rubber and is NOT reinforced; it is NOT recommend to be used in high boost or high temp application