powercore 4 silent insert

No replies to this topic
  • benjar

Posted January 07, 2011 - 11:57 PM


I've read all of the threads on the silent insert for the powercore 4. I have a 2000 WR400 with a FMF powercore 4. I had a sound test done and failed with a 99db. I bought the silent insert but it doesn't fit the pipe I have. Are there different Powercore 4 mufflers? On the FMF website they say that there is a silent insert but none are shown. I am racing next weekend and I need one quick. Any suggestions?

For now, I put on the original pipe which is a YZ426 pipe with a Pro Moto Billet insert. Will this pipe pass the sound test? Any help would be appreciated.



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.