I have the D&D slip on mounted to the factory head pipe on my 2010 FLTRX. With the CAT exhaust, the D&D was quieter than I wanted, so I removed the baffle. Perfect! Nice low tone, plenty of sound, but still quiet enough to enjoy the Marshall Tucker band on the stereo. I added the H-D black heat shields, and the D&D looks great, sounds great, and performs very well. I added the H-D Screamin' Eagle air cleaner, and a Stage 1 re-program.

