I've heard of people buying cat's from the local junker for hundreds of dollars. Someone bought 2 or 4 of them off a Cadillac for $500. Just the Cats!
Not sure what ours are made of. I would at least check it out and report back to us

. I tossed mine out not knowing better
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1987 300TD 147,000 miles- Palomino leather interior, 1995 facelift and body cladding, E350 wheels, Rebuilt suspension and sport springs, rebuilt turbo, New Monarch injection pump and injectors....and the list goes on and on...