1968 Arctic Cat Panther, with factory optional side pipes
rare Montana pipes for Cat owners in the high altitudes, over 6 thousand feet, because they needed higher performance (of course) and the chrome exhaust came with carb mods and clutch work
http://volocars.com/vehicles/11956/1968-arctic-cat-panther
via Raymond Arsenault on Life and Business http://raymondarsenault.blogspot.com/2015/12/1968-arctic-cat-panther-with-factory.html