Need help identifying this turbo
 

My boy gave me a turbo he found in his garage and I tried looking online for more information on it but idk exactly what to look for since i barely know anything about turbo's and what that gold thing is in the 3rd pic (cant think of the word for it) but i havent seen them on any other turbos ive seen. here's some pics to help identify
http://i54.tinypic.com/j80ig1.jpg
http://img3.imageshack.us/img3/1830/68979029.jpg
http://uploadpic.org/storage/origina...sjf2nunn4l.jpg