Just got in. Tried a new to me Picco .45 side exhaust with the MA 10-6, and 10% that I used before. 14,900 with a muffler, and 15,700 open exhaust. Really loud with no exhaust, and seemed louder with the throttle opened the last little bit. It did not really seem faster when opened, Just louder. It was not really as good as I thought. The Supertiger and OS FX are still the winners. Even the LA .46 was pretty good, considering.