I am in need of an obd 2 compatable Cat. for my 2000 civic ex. i want some more restriction and for my exhaust to be a little quieter. i have a “high flow” on now and cant have my o2 sensor in it but would like to now. It can be an oem or aftermarket if compatable cat.
Please help me quiet my car. i am willing to trade for my “high flow cat” if someone is looking for more performance.
post what you have