Awe man !!! just went to install my bark busters to find my factory bars are pre-loaded with a chunk of steel with rubber cast in place for cutting down the vibration, "all bars are not created equal ". Then I thought it was just an end cap and tried to drill it out "WRONG", it goes deeper than my bit does so I just ordered a new factory bar I plan to drill and tap for the bark busters. Just beware.
eric-04kx500