Black anodized finish. Air filter element pre-oiled with black oil. This is a Stage 1 performance air cleaner kit for M8 models. Perfect for those that think stock is not good enough. Offers easy bolt-on installation and improved looks. The patent-pending hidden breather system is O-ringed at the heads; passes through the backing plate and exits inside the mouth of the throttle body through proprietary shooter tubes. - Increases Horsepower & Torque over stock - Eliminates oil blow-by issues associated with M8 Engines - Black Pre-Oiled cotton gauze high flow air filter element - Patent-Pending hidden breather technology - Patent-Pending oil catch / reservoir - One-Piece aluminum backing plate - Aluminum filter top plate.