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They are gone, and to close the thread, these exhaust manifold/cats were removed Feb 2017 at 129,761 miles. When I first got the car in 2012 with 103,000 miles I would (very occasionally, maybe 2-3 times up until Jan 2014 at 109,200) get the cat inefficiency code (P0420 or something) and this was solved by replacing the rear O2 sensor to resolve P1117 and P0139 (O2 sensor aging related codes) and since then I never had another P0420 or whatever the one is for the other side. I also changed plugs at that same service so maybe it was that that fixed the P0420)
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