Last year with about 1100 hours on the engine the Y pipe got a hole in it near where it connects to the muffler, the hole became a huge crack that went all the way through and seperated from the muffler and became VERY VERY LOUD, like a Harley constently running 14 hours all day long. Under warrenty both were replaced. Yesterday with about 2000 hours on the engine the Y pipe crapped out AGAIN!!!! WTF!!! and theres also a pin hole in the connection to the muffler so thats about to go too!! 200 for a muffler 75 for the Y pipe and 150 for the labor for them to replace it all. How the hell can such a simple thing happen essentually on a yearly basis now? They said they had just replaced one the day before too and it happens reguarly and on Kolher only. I understand stuff wears out, but to drop $400 every year for such a stupid and pointless thing only to never really solve the problem pisses me off. Have they really not updated the pipe by now to handle the lean running Kohler engines from eating through the pipe?