Not sure what a dual O pipe is LOL
If your talking about those loops of wire loom, that is a sensor (I believe the lock out solenoid) for the 6 speed. I left it long incase I did it wrong. I actually left all the wiring I did longer than necessary incase I needed to go back and fix it.
When everything is proven to work, I will go back, and make the wiring "Pretty" LOL