So, I was looking at buying a 99 Subaru Forrester tonight, and was driving home when this happened to my old car:
Instead of driving home, I cut the cat off, put it in the passenger well, and the drove back to the guy I was buying the Forrester from, and sold the Legacy to him for $200 off the Forrester. In related news, driving a car with no cat sounds really awesome! (The guy is a mechanic, so I assume he will part the car out, scrap it, or repair and sell it.)
I was looking at buying the Forrester because the head gasket on the Legacy was blown, not because the exhaust was terrible.