So, having the oil feed and return figured out, I started to think of ways of doing the watercooling on the CT9, yes I know I could do without it but why not? I don't have CT9's in every corner where I am! xD Since the 4E-FE doesn't share the same thermostat housing as the FTE, I thought about looping the Throttle body water lines to the CT9, would this work? What exactly does the throttle body water do? Could it do without? Cheers