as im sure some may have seen my other post asking if there is a possibility of a slipper clutch conversion for the 2015-2017 GSXS, it is *possible*
the 2018 has been fitted with a slipper clutch and the idea from HUGOJOSE to look at the part number differences between the 2016 and 2018.
i looked at the starter clutch mechanism - all parts are same part numbers
i looked at the clutch cable - same part numbers
i looked at the crankshaft (possible differences in the spline count or thread differences? both are exact same part number
i looked at the clutch case and other covers as well - all exact same part numbers
so now it comes to the actual clutch components, other than the actual clutch its self, only 2 components were different part numbers:
1) 2311-35F00 rod, clutch push, LH
2) 23271-41g60 arm, clutch release
the other components those 2 listed connect to are still the same part numbers so there shouldnt be any reason or issue using the 2 above parts listed on the 2015-2017 models
so 2 components plus the full clutch its self is not a bad deal to put a slipper clutch into the earlier models!