Anyone else seen something like this? I have cost aluminum OT's, water cooled and the right side pipe looks like it got super-heated, bubbled and split at the top bend. The left side had no issues. This was after a number of (10 maybe) high-load launches and 1/2 mile runs.
The plugs all look good, i pulled the water logs and each exhaust port seems sooty black so it does not appear to be running lean on that side. Water was running through the log the whole time, as far as I can tell, and the motor was not overheating.
FYI, only the bottom channel of these OT's are water cooled, this split happened at the top.