The Mishimoto 15-20 BMW F8X M3/M4 Baffled Oil Catch Can in Alpine White is designed to prevent oil contamination from entering the engine intake system. It features a one-way baffle system that separates and traps oil particles from the crankcase ventilation system, while still allowing air to pass through. The can is made from durable aluminum with an anodized finish for added protection, and includes a mounting bracket for secure installation. The can also includes two -10AN fittings and two -10AN braided hoses for a secure connection.