FMF Quiet insert jetting

No replies to this topic
  • jrny426

Posted September 28, 2007 - 11:22 AM


My 02 426 has a FMF header and t-4 muffler it's but works awesome top and bottom end,I bought the insert to knock down the db's (and a little hp I'm sure)but the bike has no bottom end, when it does hit the power band it's off to the races. My guess is the new restriction is backing things up ,so my ? is do I jet down or what?I have no idea whats in it now,I'm not comfortable enough to start dismantling things as of yet,anyone else run across this?

Related Content


Join Our Community!

Even if you don't want to post, registered members get access to tools that make finding & following the good stuff easier.

If you enjoyed reading about "" here in the ThumperTalk archive, you'll LOVE our community. Come join ThumperTalk today!

The views and opinions expressed on this page are strictly those of the author, and have not been reviewed or approved by ThumperTalk.