Can you drill out the baffles on your 2008 883 sportster custom mufflers at the rear of the muffler or do you need a longer narrower drill to drill them out about 12 from the back?

Most Harley Davidson mufflers have "2" sets of baffles. one in the rear and one in the front close to the location where the muffler meets the head pipe. I have found the best wat to remove these is to remove the mufflers, stand them on end on a padded surface ) a few towels will do) and use a piece of galvanized Plumbing pipe and a hammer and knock the baffles in until they are flat against the inside of the muffler. But, if you remove the baffles you will also need to increase the flow of gas to the valves or you will burn them out. The Vance and Hines Fuelpack or the Harley CD download ( dealer only) will do the trick. The bike will run so much better once you let it breath. Good Luck