Aluminum Water Pump,Housing and Thermostat Neck

Does anyone here have a Aluminum Water Pump,Water Pump Housing,and Aluminum Filler neck on any of their cars? I'm sure it would not only look good but save a little bit of added weight on the front end.What are your opinions on this? Cost is about $175 for the complete set.Aluminum Water Pump,Housing,and Water Neck.JPG