I got the stright ones,then installed the baffles in them. i raped muffler packing material around them then raped SS wire around the packing to hold it in place then i put a socket the size of the baffle with a long extension and bang it to the end of the fisk tail,sounds great.
later POPS"T a oldie but a goodie
PS if you are going to use 2" you have to cut 5 slits at the end of the baffles.note get the baffles that have 2" on both ends they fit tight.