where is it every one is tapping in to the coolant system for the turbo? If your answer is the heater hose that is what I thought. is there any where else? there is a plug just under the exhaust below 5 and 6 and I was wondering if this is an acceptable place to source coolant for the turbo? also possably returning to the system at the thermostat? I am just trying to keep thing a little nicer looking under the hood. thanks.