Well by my screen name you can tell I'm not a RM owner. But my dad is. Actually he wants to let my son use his 96 RM untill he can afford his own car. Good shape. Almost 98K on it. But keeps throwing a P0420 code. O2 sensor is ok so I guess it's the cat. Was considering gutting the cat and using an O2 simulator to kill the CEL. Anyone else doing this ???