I hear a high pitched buzz noise sometime coming from my pipes. It is almost like a ringing noise. It seems to be mostly at high speed on the freeway. I will be cruising along and I can hear it then it will go away..... then as fast as it goes away it will come back. Any thoughts? Anybody else had this issue with the V&H Big Radius Pipes? Thanks Guys.

 

Something loose? Certain speeds could be causing a part to vibrate, causing the noise. See if you can pinpoint a particular gear and speed combination.

It's not anything specific to BR's. It's exclusive to your setup.