I just aquired a 1988 BMW K75S with a Supertrapp system (muffler?) on it. I see a serial, or model number of 027-8750. This really looks like an entire system, either that or someone did a wonderful job of welding the header tubes/collector to the muffler.
I've looked over the site and do not see this model, or much mention of BMW k bikes. I'm hoping to find out more about the system and see if the replacement parts, such as the packing are still available.

Thank you:
Rick G.
Littleton, Colorado