This ducted oil cooler kit for the MR-S fits within the passenger side vent, nicely complementing our ducted intake. The core and ducts are packaged within the quarter panel, keeping your engine bay clear. The ducts are 3d-printed from carbon-reinforced nylon and the mounting hardware from 1/16in 6061 aluminum to minimize weight. As a result, the entire ducted cooling assembly weighs just 3.5lbs.