Image The head pipe on the '06 was the same diameter throughout its length, while the '07 is tapered in a quest for more low-end power. Use keyboard arrow keys to browse the gallery. Swipe to browse the gallery. Prev Next 6 of 20Autoplay Autoplay SlowMedFast Share to Facebook Facebook Facebook Share to Twitter Twitter Twitter GuyB 8/30/2006 3:43am Share to Facebook Facebook Facebook Share to Twitter Twitter Twitter