This line of air cleaners was created perfectly to match our popular classix aluminum finned valve covers. Three models for single or dual-quads give you plenty of options for that Just right look on any nostalgia rod or muscle car. Additionally, the small oval air cleaner provides adequate hood clearance in demanding applications as well as a coordinated appearance with the classic finned look. Out classic series air cleaners are available in either a classic polished aluminum or durable black powder coated finish. They come with high-quality 2-1/2in. washable, pre-oiled cotton gauze filter for excellent filtration. These air cleaners work with all popular 5-1/8in. necks, for all carburetors or throttle bodies.