Home › Forums › Stay Dirty Lounge › Service and Repair Questions Answered Here › 1997 Civic HX Catalytic Converter › Reply To: 1997 Civic HX Catalytic Converter September 21, 2020 at 11:50 am #963764 JeffParticipant With the age of this car I would normally go with an aftermarket cat. But in my experience Honda’s are very sensitive on catylis effeciencies. I would recommend the dealer cat.