On my car the catalyst and trap ox looked exactly the same. Here is what I did with my stuff.

http://www.peachparts.com/shopforum/showthread.php?threadid=90424

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'85 300SD (formerly california emissions)
'08 Chevy Tahoe
'93 Ducati 900 SS
'79 Kawasaki KZ 650
'86 Kawasaki KX 250
'88 Kawasaki KDX200
'71 Hodaka Ace 100
'72 Triumph T100R