I agree also, the noise those things make is unbearable. 130 dB wide open down a straight, not the cheating 96 they claim with no load and at 1/2 max rpm. It was the biggest change in racing when I started back up in '06 after 19 years off. Back when it was only 2 strokes, you could tell how far the rider behind you was just by the sound. Now even when they are a whole straight behind you, it still sounds like they are right on your rear wheel!! I can't even hear my bike on the starting line. It's kind of like the time I ran my street-legal Chevy Z-28 against a full-race Chevelle with open pipes at the dragstrip....