RE: BISSON MUFFLERS...
I sent them a muffler for repair a couple of months ago. It was broken as result of a manufacturing defect in an airplane they sold me. Granted, they were not the mfg of the airplane, but I still thought charging me $25 to repair the muffler was out of line. Maybe it depends on who you talk to and how their day has been.
And no, they didn't send me a new one.
Jim