Spectre ExtraFlow HPR Air Cleaner Assembly 14in. x 3in. - RedSpectre's 14 inch by 3 inch tall Extraflow air filter assembly is designed to fit throttle body injection assemblies and carburetors with a 5 1 8 inch neck flange. Featuring a zinc plated 1 1 4 inch drop base for increased hood clearance, this assembly requires 2. 9 inches of clearance above the carb flange when installed. This assembly includes an ExtraFlow filter lid, which increases filter area and allows it to outperform standard closed lids.