Mine is a 94 LX and mine <i>had</i> 3 cats (today i had true duals put on it with glasspacks) My car had california emissions on it though so I don't know. I only have 2 cat's now. The exhaust is loud as hell... i really like it, although there is a leak in one of the pipes i need to have him fix within a day or 2. I also have to have one of the pipes moved a bit. Haha I almost got pulled over by a cop the first day I have it. He got out of the straight lane and got into the turning lane i was in, got behind me, ran my tags, saw it was clear then drove off haha. the exhaust made him follow me though... it draws a crap load of attention to the car.