Yes I talked to the manager at PCM warranty, not positive but I believe his name was Mark Synder. My manifold leaked by O2 sensor on passenger side, tried JB Weld but it didn't work. I asked if their was anything he could do for me. He agreed to pay for parts if I had a dealer inspect and install it, which I think was very fair. I guess it is a known issue with their cast manifold, probably a porosity problem, and they even changed part numbers for the new one and changed the chemistry of the casting. So I think he knows about the issue, and is a little more forgiving on the warranty. I'm worried on my other side now, how long will it last? I heard stories of owners replacing both sides. It's been a great boat besides this manifold. Good luck, let me know how it goes.