Description Performance exhaust package for 4 stroke ohv Honda & Chonda engines chrome plated header pipe part number AS0312c Aussiespeed AS0287Kc long series 2 piece muffler includes 2 connecting springs to connect the header pipe to the muffler plus AS0310 rear bumper mounting kit to support the long series Aussiespeed muffler . This press bend header pipe suits engines that perform over a wide rev range it increases performance & torque & is designed for engines that use a wide rpm range. The AussieSpeed Honda, Clone go kart engine header pipe has a fully welded spring coupler for easy fitment of AussieSpeed AS0287K long muffler. This is a full exhaust system including Chrome header pipe, Crome long series muffler & rear bumper muffler mounting kit .