TTi ceramic coating warranty

The coating on my Doug's headers is doing that, but only where I got some oil on them during an oil change. They've been on it for about 2 years. If you get anything on them in the future (oil, anti-freeze, etc) make sure you get it thoroughly wiped off because I believe that it somehow damages the coating, maybe from the oil getting hot (no scientific evidence, just based on the fact that the only problem area is where oil got on it).