For reference we just released a Jackpot Tunable Quiet baffle for the Dyno Tuned mufflers which allows for different tunable options including near stock dB level, as well as the new Competition baffles for those looking for maximum deep throaty sound. There is more info at www.jackpotmufflers.com/accessories.htm and I just posted sound dB testing in this thread http://hdforums.com/forum/touring-models/433106-jackpot-baffle-sound-db-testing-by-fuel-moto.html