The Mishimoto 15-20 BMW F8X M3/M4 Baffled Oil Catch Can is designed to keep oil from entering the engine's intake system, preventing build-up and helping to maintain performance. This catch can features a two-piece design, with a silver anodized aluminum canister and a black anodized aluminum mounting bracket. The baffled canister is designed to separate oil from the crankcase vapors, allowing only clean air to pass through the crankcase ventilation system. The included mounting bracket allows for easy installation and is compatible with the OEM oil filter housing. This catch can also features a drain plug for easy maintenance.