Referring to FIG 1, an exhaust system into which {HEAD ~ a catalytic converter} of the present invention is applied comprises a bifurcated exhaust pipe comprising two upstream exhaust pipes 2 and 3 which are connected to a pair of exhaust ports of the engine 1 and {TAIL ~ a common downstream exhaust pipe} 4 
Referring to FIG 1 , an exhaust system into which { HEAD ~ a catalytic converter } of the present invention is applied comprises a bifurcated exhaust pipe comprising two upstream exhaust pipes 2 and 3 which are connected to a pair of exhaust ports of the engine 1 and { TAIL ~ a common downstream exhaust pipe } 4
OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD HEAD OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH TAIL TAIL TAIL TAIL TAIL TAIL TAIL TAIL TAIL OTH