Wow, I thought this thread died. What I am looking for is really info about some pipes I have. They came from an old Alsport dealership, i think. The construction looks just like the pipes in Jeff Clark and markus posts. They are short, maybe 31" from front edge to end. Pipe size is about the same. Built in muffling shell, not a stinger with added silencer. I have some pics somewhere, ill get them up when I find them.