Let start by saying I try to keep my busa in top form at all times. So I give new things a shot from time to time. Lately I noticed the busa didn't seem as snappy as normal. So I did the sea foam treatment and added to my fuel. Cant say I noticed any measurable difference. So I gave a week and thought maybe the loss is in my head. But I'll give the Berryman B12 chemtool a shot. I have to admit this stuff brought the snap back in my throttle! I cant believe it. This stuff really made a difference. Guess as a sceptic I was wrong. Those who are putting on the miles heck $5 you cant go wrong. I would dare say my mileage might have improved as well.