As you may or may not know, some GL1100 part are unobtainable as new parts. So, I designed these replacement gaskets for the air box and the plenum on the GL1100. I think the GL1000 uses the same gaskets, so it may fit that too. If they do work for the GL1000, let me know.
I printed these with black TPU, 0.12 layer height, and 100% infill. Probably overkill on the infill and layer height.
The author hasn't provided the model origin yet.