Referring to FIG 1, an exhaust system into which 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 {HEAD ~ exhaust ports} of the engine 1 and {TAIL ~ a common downstream exhaust pipe} 4 
Referring to FIG 1 , an exhaust system into which 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 { HEAD ~ exhaust ports } of the engine 1 and { TAIL ~ a common downstream exhaust pipe } 4
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