I recently picked up a turbo from a buddie of mine, he didnt want it so i just took it off his hands now im trying to figure out what kinda it is or what it even came off of, its says AirResearch on the compresser side and it says DH3/4 Garrett M4 and the model number is TB0357 any help would be appreciated, thanks.

 

google it

 

late 80's (87-89 specifically I believe) saab 900 turbo.

 

ok thanks