IM sure there is threads on this but i cant find exactly what mi looking for so i figured id ask again... ok firstly im a mechanic by trade but havent done it for a few years and havent ever workded on bikes. but i have a Hyosung Gt650r EFI model (i know eveyone seems to hate on them but this one seems to go well)... anyways my question is on this model can i just swap out the exaust can and while i assume slip on means it slips on and bolt on means it bolts on are all slip on universal in size? and same for bolt on do they all have the same bolt on pattern etc? is there specific exaust cans for each bike model or are they basically generic. anyways any more info for a good one for my bike would be nice. i could have looked allover the net but thought ill come to where i know i can find the answers all at once.