I've been through three sets of pipe combinations for my '06 Scrambler. I bought the bike used and it had low pipes which sound good but picked up too much grime. I bought the british Customs headers with mini cones and they generated a lot of power but wre a bit too loud. I then went to stock pipes with the BC mini cones and I think I have the right combo now. Not too loud and great power delivery. They look good too. BC also has predators and sleepers but they weren't right for my bike.
