It was the cat with the flanges on both ends that threw me off. I realize now that the two previous cars I worked on had the later cat with the rear pipe attached.

I may be over-thinking this. The pipe behind the cat is very solid. The cat's bolts on the rear flange would have to be cut off if I were to replace it but that doesn't mean they won't hold it together if left alone. Like I stated earlier I'll take a hard look at the whole system this weekend and decide how far to go with it. (I consider the car a keeper but I can't tell you how many cars in my life I said that about)

Curious though if there are any gains in power or drivability by gutting or removing the cat. (or replacing it with new) There are no operational problems with the K-Jet system now.