OBX 45 Degree Reinforced Silicone Hump Elbow Reducer 3.5"- 4.5" Black 5Ply Heavy Duty Suitable for intake and intercooler piping and other custom applications High Quality 5 Ply Silicone For Best Durability Available in a range of colors to fit any engine bay color scheme Universal for an assortment of different applications Design and Quality of OBX U.S.A.