Does anyone know the part number for the spark plug non fouler that should be used in the rear o2 when removing the cat to stop the code from coming up? Looking at getting a different Prix and the only thin wrong with the car is the previous owner removed the cat and just put in a piece of straight pipe on an 01. I swear I heard on here that was the easiest fix for it if not I'll just look at picking up an 02 sim.