Just wondered if any of you guys know if the thermostat housing. Basically the whole lump that bolts on to the side of the head will swap from a 1.8 16v xsi, onto the RS head?

I like the look of it, as it only has the one outlet, rather than 2 on the standard rs piece. I am doing away with my interior heater, and a few other bits, so this would be useful if it fitted.

The other thing is, has anyone fitted the rear water pipe, the metal one from the water pump area to the thermostat housing? Again, using the XSi water pipe onto the RS engine.. This curves straight up to the thermostat area, rather that wandering over the top of the box. I was hoping to use this also, so I can do some extra work on top of the gearbox...

ANy help appreciated. The XSi engine, I believe, is an XU7JP4.... but I am not 100%. I just know the car is a 1.8 16v phase 3 car.