A Cusco oil catch can is a functional and stylish way to separate fuel and oil blow-by from contaminating combustion efficiency. Blow-by material is separated from the PCV system preventing harmful vapors, residue and oil from degrading fuel quality, allowing your Miata to run more efficiently. Cusco didn't forget that you want your engine to fashionable as well as functional, however. Cusco oil catch cans are mirror polished and feature anodized blue fittings and powder coated brackets to enhance the look of your bay. These catch cans are direct installation for your Miata and include all brackets, hoses and hardware for a seamless install.