Have you taken some audio clips yet? Mine is loud as well, but only when I get on it. It is actually quiet when it is at idle. I woul dlike to hear yours if you coul dsend me an E mail or post clips. Use yousendit.com and send me the link to listen. (Send clip to yourself via E mail then PM the link you get with it) I can send some too.
Link to the Bullets Exhaust sound clips. I also have the Supermax Headers installed too. Not sure how long the link will last, but first come first serve basis.....Turn up your speaker volume, sit back and ENJOY! :guiness: