As above basically. I think i bought all the stuff off ebay for about 35 quid.
T piece 63mm(i think)with a 25mm piece coming off.
25mm metal connector
25mm blocking plug.
25mm 1m straight pipe (will be plenty)
Took me about half hour to fit as had to take bumper off to cut some of the pipe to fit the t piece in nicely.
d/v stays cool now, used to heat up before and start to fail and not work correctly.