Replaced the catalyst! - Toyota Corolla, 1.6 L, 1992

Today I went to madexhaust.ru/ where they replaced the catalyst with a FOX flame arrester, in addition to this, the corrugation was changed, and the joint of the collector and the exhaust pipe was leveled, Thank you guys very much, real professionals!
ps the machine is now driving faster, the lambda has not yet begun to eviscerate, maybe I'll decide to put forward flow then and deal with it)