Originally Posted by M54ccibo
Thanks for the info. Tomorrow I'll pay attention to speeds etc. around 2K. If its not bad with the valves closed, I say no biggie.
I'd would definately buy it again, and would actually like 20% louder with the valves open. Just me. It's perfect with the valves closed and wouldn't change a thing. Hope this helps.
And by the way, you can definately feel the difference in performance.