The Mishimoto 15-20 BMW F8X M3/M4 Baffled Oil Catch Can in Austin Yellow is designed to reduce carbon buildup and oil sludge in your engine. It is constructed from lightweight aluminum and features a two-piece design, which allows for easy installation and removal. The can also features internal baffles to ensure proper oil separation and prevent oil from entering your intake system. The Austin Yellow finish adds a stylish touch to the engine bay of your BMW.