After seeing that you dont need emissions just have a muffler shop cut off your cat and weld in a straight pipe .. KEEP YOUR CAT they are worth alot of money . Also if a muffler shop is charging you over $200 to weld in a pipe they are scamming you RUN ! Or you can get an aftermarket cat for like 200 that way you dont have a check engine light but it doesnt matter anyway ..

You can cut off your original cat sell it probably for around 500-800 dollars to a cat guy on facebook marketplace and then go to an exhaust shop and have them weld in a straight pipe for 100$ if you live in a non emissions county or an aftermarket cat for $200 . You will make money and keep your current car because 160k on an accord is nothing and its not even that old .