08 450fsr exhausts
 

Do you American guys get the same black muffler on your bikes as ours in Australia? We get a removeable baffle with ours but its not fitted upon delivery. If not what do you have?
What I'm trying to get at is, has anyone tried playing around with different size baffles on these bikes? I'd like to take some of the sting out of the bottom-end in some situations (tight singletrack) and I think a baffle might be the best/easiest way. Taa

Have you tried re-gearing the bike. Go one tooth smaller on the rear sprocket and you will lose some of the pop/hit. It cost about $30 USD for an inexpensive steel sprocket.

Same muffler. If you choke it up with the baffles it will smooth it out some but not alot on the bottom, mostly the topend.

Try getting the 2009 fly wheel weight.
I know you can get them from Gas Gas for the 515
this would help.