Daniel, I can't tell you how it sounds with the x-over pipe blocked because I have yet to fire up my bike since I did it. AND it will be a while before I can start 'er up 'cause she's all apart sitting in my house. Interesting to hear what others are saying here though.
Btw... if you do this, pull the right side header... that's the side you want to plug just because of the way the x-over slip joint works.
