Boyesen Power Valve Covers...Worth it?

[customfab]

So I've seen the marketing literature but I want real worth experience. Do these things really work?

I've already got a gnarly pipe and boyesen rad valve. Sending off head to Eric Gorr after Xmas. Don't mind spending the cash if I will actually notice the diff for woods riding.

 

[IndyMX]

My gut says that they're bling.. Maybe if the bike is absolutely perfectly tuned, you'd actually feel an improvement?? But really, how much can a powervalve cover change the performance of the bike?

I'd ask Eric. He may have a more informed opinion on it.

 

[moto9]

If your talking about the torq chamber for the older CR's IMHO it's worth it, you will notice a some added bottom