It's going! I'm almost done. It's in and running, I just want to go back and clean off the end of the stock exhaust because it's npt seating into the KO pipe, and put a gasket in as well.
I think that if there is rust on your KO pipe it's safe to say that the ceramic coating is gone. I know exactly what you are talking about because I have my old one here and it's the same way. There not much you can do unless you build some kind of skid plate to protect it from rocks, etc.
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