This is too awsome so had to tell you folks!
Had a customer come in to have service done on his 2001 RC51, equipped with a set of Yoshimura SP3's on them.
First off, the sound that came out of those pipes was so sweet that you wanted to go back to the service bay just to listen to the roar. You could feel the rumble pulsating from the RC all the way in the front of the store.
Customers comes to pick up the bike and starts it up to get on his way.. as he pulls out, (must have been a good 30 ft from service doors outside) he gives it one last shot of the throttle, and CRASH!...the windows from the main door leading inside shatters in pieces. A couple of us were standing there in awe as this happens and a big chill came over us as too how Awsome that was. not sure if you've heard of anything happenning like this but it was definnatly worth experiencing!
( From my point..i think the sound wave must have been at that perfect pitch and angle to shatter that glass)