Spectre offers multiple aluminum air cleaner assemblies to fit the style of your custom car. Sizes include 12 inch long & 15 inch long oval, as well as, 14 inch diameter round assemblies at 3 inches, 4 inches and 5 inches tall. Our oval assemblies and our 14 inch by 3 inch assemblies are offered with either a paper air filter or the Spectre HPR air filter. The 14 by 4 and 14 by 5 inch assemblies come with the Spectre HPR lifetime air filter. Each assembly is available with either a smooth polished, ball milled or flamed design in the lid. In addition to our oval and round assemblies, we also offer two styles of air cleaner/hood scoops.