Catalytic Converter Issue Help
So I own a 1998 Lexus ES300 with 150k on it and now the engine light is on. I took it to the garage and was told I need to replace a Rear Cylinder Head Converter. The guy told me the code was coming from the rear manifold. I've tried to find this replacement part online but to an avail. Can anyon shed light as to where I can find this part? Thanks in advance.