Here's one for all you long time Kitfoxers. During condition inspection, I discovered numerous cracks in my muffler at all the openings for the exhaust tubes from the cylinders. Also the end where the exhaust pipe exits the muffler housing the weld has broken almost completely around the circumference. It was installed as per instructions with no binding, anti seize used on all joints, springs installed and saftied and only has 66.0 hrs on the engine. This has been inspected routinely and just happened in last hour or so of operation. Has anyone else had something similar happen, or is this an unusual occurance? Thanks.

Dick B