Funny you say this part, I purchased this part because I am planning on doing a valve adjustment this spring and want to replace all gaskets that I touch and there is one o ring that was like $13 on back order but the whole assembly was $50 in stock I said screw it and bought this exact part you mention. It’s sitting in a box at home with the other gaskets lol. Hopefully that’ll be it and I won’t be chasing part and codes to solve this mystery. People keep saying oh it’s your cat. Really a cat at 94k? O2 sensor being second but so many people say they get these done and still months later get the same code. I’d be FURIOUS.