I finally got my Ocean Blue, and Phantom Silver today 7-15-06. I rode today 182 miles with out the first problem at all, It was perfect!! I had been reading from some of the others, that they had throttle problems, and whistle sounds, I had nothing but perfection from my new bike. I am breaking it in right, by not going over the 60 mph, and no sudden outburst of roll on accelaration, there will be plenty time for that after the 1000 mile break in. I am really pleased the way it rides, handles, and the mileage it is getting, and I love the sweet sound, not too loud, just right for my ears. I will stay with these pipes that is for sure. JW