Showing my age here, but I remember many of my friends had "Glass Packs" on the 50's and 60's cars to replace the OEM muffler.
The game for the local officers was to pull over those with loud pipes, give tickets or warnings.
Today, officers just seem to look the other way and don't bother, or because if you showed up in court for loud pipes,
to many judges threw the case out the window.
2012 GOLDWING ROADSMITH TRIKE:
A real butt-kickin', wheelie popp'in, tire burn'in. eye catch'in Old Man's Bike.