I bought one of the all aluminium ones from eBay for £150 as I was having trouble with leaks from the elbow flange and these come with that flange welded on as part of it. Didn't need to modify the car, only make a couple of brackets to fit it in replacement of the small L shaped brackets. The fan assembly bolted straight on and the bottom locating pins are in the right place. I will post some photos of this Friday if your interested?