This weekend was my first tow with the new monster exhaust, and while it felt a little more powerful (the power of suggestion is a powerful thing :teethmast ), I noticed that when shifting down from 4th to third on the toggle, it sounded like there was a noticeable difference in air being sucked in.....noticeable in that I've never noticed a whooshing sound like this at all. Have any other Banksters/towsters experienced this? Now I'm no auto gear-head like some here but I'm a big fan of physics, and was theorizing that maybe because of the near unrestricted exhaust flow and the greater strain on the engine whilste towing, maybe it's hungry for more air?? :huh: