have you got a picture? typically a slip-on is just that, slip the old beer can off, and slip the new muffler on. i bought a muffler clamp from the harley shop, as the muffler i got out of their dumpster didn't have one. this particular muffler had a slot that i slid a 3/8" carriage bolt into, and it lined up with the stock suzuki mount. i understand some harley mufflers have a tab style bracket that requires a minor modification to work, someone else will have to comment on that type. when you change the stock pipe, you'll need to rejet the carb also.