I have them on my bike. Seem to be good quality, added baffles as they were very loud.

The cocktail shakers are Paughco from a Harley you can see here on my bike:
http://www.bonnevilleamerica.com/forums/...e=12#Post488722

These are the baffles I added
https://m.denniskirk.com/H44738.sku?utm_...CFck-Mgodb2oAJg