Quote:
Originally Posted by RFaber
Here is a photo of what I’m looking at, this is the cat as viewed through the o2 sensor hole
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Based on that pic, that cat is becoming clogged from what looks like deposits. Misfires, and low engine output are in your near future. Rockauto has a bunch of aftermarket options. My cats on my 04 went around ~150K mi with a P0422 catalyst inefficiency. I think I paid $800/ea for OEM, and just did both "while you're in there" since they both had to come out anyways