{HEAD ~ A catalytic converter} adapted for use in the exhaust system of internal combustion engines comprising a shell made of a pair of half shells forming an inlet chamber and a catalyst chamber, and {TAIL ~ a funnel like outlet shell} forming an outlet chamber 
comprising
{ HEAD ~ A catalytic converter } adapted for use in the exhaust system of internal combustion engines comprising a shell made of a pair of half shells forming an inlet chamber and a catalyst chamber , and { TAIL ~ a funnel like outlet shell } forming an outlet chamber
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