At the concourse portion or bifurcation of the exhaust pipes, a catalytic converter 5 of the present invention is provided, connecting {HEAD ~ each end} of the exhaust pipes 2 and 3 to {TAIL ~ an inlet} of the catalytic converter and connecting the end of the common exhaust pipe 4 to an outlet thereof 
to
At the concourse portion or bifurcation of the exhaust pipes , a catalytic converter 5 of the present invention is provided , connecting { HEAD ~ each end } of the exhaust pipes 2 and 3 to { TAIL ~ an inlet } of the catalytic converter and connecting the end of the common exhaust pipe 4 to an outlet thereof
OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD OTH OTH OTH OTH OTH OTH OTH REL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH