I just failed smog with my 1997 ex civic and trying to find a replacement cat for it. Wanted to see if someone know what other civic cats will fit? and Will a 00 Si cat be the fitment and have the same 02 sensor hole.

Thanks

Any help will be greatly appreciated.

 

im not sure but prolly any 94-99 civic willl have the same cat but idk about the si cat go to junkyard and get 1