It's hard to find any other upgrade to your Harley that will give you more bang for the buck. The chromed knurled knob on the throttle control adjusting screw looks great and is much easier to use than the large black plastic knob on the stock adjusting screw, which is jammed between the throttle and idle cables.
The clip that comes with it to hold it in place is very weak i picked up a much stronger one at the local parts store for pennies. Other than that its a great fit and looks amazing. Very Easy to install