Description Honda GX160, GX200 & Clone 5.5 & 6.5 Horse power 4 stroke Gokart engine short performance exhaust kit part number AS0311p Aussiespeed AS0278p short series muffler & clamp kit. This press bend header pipe increases performance & torque across the rev range but is louder than the long exhaust kit This is a full exhaust system that includes pipe, muffler & clamp