Those of you who bought the aluminium water pipe (Crack Pipe) from US on the group buy some time ago now. How hard was it to fit the pipe with the engine in situ, and is it worth getting as I'm about to change the thermostat for the low temp variety. I can buy the whole kit including the housing,low temp thermostat,seals and a aluminium water pipe for about £100 do you think thats a fair price.