Spectre's HPR universal cone air filters are great for custom air intake and racing applications. They have lower restriction than typical paper air filters, featuring washable synthetic media. This clamp-on cone air filter is 10.25 inches tall with a 6 inch inside diameter flange. It is designed to fit 2-1/2 inch to 4 inch intake tube applications with an optional velocity stack (not included). Use velocity stack part 9601 for fit 2-1/2 inch flange, part 9602 for fit 3 inch flange and part 9604 for 4 inch flange.
