Description Aussiespeed Chrome finish header pipe suit Briggs & Stratton model 12 Junior 206, local 206 & Animal engines. The chrome plated header pipe has a 25mm or 1inch outlet and the recommended muffler is the aso278c short style AussieSpeed muffler. The single support bracket is fully welded & bolts to the cylinder head. Note the chrome finish will blue as heat will affect the chrome plated finish.