This is a great pipe, sound, and looks. For the price it can't be beat. Gets rid of that nasty little heater next to your leg as well, and lets your bike breath. Remeber, a motor is just an air pump, the faster you move air through it, the faster you go, and these things really open it up.Very easy to install as well, which is a real plus since so little is on the 08 R1's. If your looking for a pipe, get this one, you will love it.