Just saw it over there. I JUST got mine bolted on and have only briefly ridden it with the stock jetting. I can say that it's actually quieter and has a more pleasant note at idle than the WR unplugged....i.e. for riding & tuning in the driveway/neighborhood. I mean I felt really uncomfortable even starting my WR exhaust in my neighborhood...and I could normally care less. Now when you get up in the R's it starts to sing. It's also nearly 3 lbs. lighter than the WR pipe. Enjoy.