You are buying ONE ONLY new old stock vintage OEM aluminum exhaust header. With gasket and hardware. P/N A3271-1. For 610 engine applications. WB 820 go kart Bonanza Lightning Bolt mini bike. Check pictures. email questions. I combine shipping.Check out my auctions for new international and american go kart and quarter midget barstool racer, powered drift trike,  enduro racing parts and as always vintage go kart racing parts and minibike mini bike parts.