rogerrutley, my friend has the V&H short shots.He has an 06 Dyna Wide Glide. I just helped him change from the original baffles, which have been on since 2007, to the quieter ones. I told him when I saw the quieter baffles which are shorter and plugged at the inlet to divert exhaust around and out instead of basically straight thru that he would gain some bottom end. (Of course we put in the supplied fiberglass packing.) His bike sounds a lot better he sayes he feels like he has more bottom end which is good and they are quieter. He was just over yesterday to shoot some pool and when he pulled away his bike sounded great, no bark, just great HD sound.CAHDBIKER (just for the record he has had a stage 1 HD upgrade since new)