I'm sure this has been covered before, but looking for some slip ons that aren't obnoxiously loud. These are big bikes, and I want a nice deep sound, not something that sounds like a blender. Two Brothers are way too expensive, IMO. I like the Holeshot 4-2 header system, but not enough performance gain for the money. The holeshot slip ons have promise, but I'd like to hear them.