Just bought my first Harley (2006 Heritage). Had a metric bike,my buddies have Harley's, got tired of hearing about what I'm missing. Well they where right. What a difference, very happy with it. Anyway It has the stock exhaust and I'd like to make a change to something a little louder without having to remap the computer. What would you recommend or can the baffles be drilled on the stock pipes. Any Feedback would be appreciated.