Clearance for big pipes without spending big money, must re use your nut, and clip from original axle touring only 

upgrades your 2009-2019 up to the 2020 up cam design for better range of adjustment and holding power

includes both cams re use your nut and clip

this is made to solve large muffler problems on the right side . less expensive than a custom swingarm or axle kit

Yes you must remove muffler or remove shock bolts to remove axle from right side