Description Performance exhaust package for 4 stroke ohv Honda & Chonda engines header pipe part number AS0312P Aussiespeed AS0280P-32 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 AS0280P long muffler. This is a full exhaust system including header pipe, long series muffler & rear bumper muffler mounting kit .