I bought a complete engine a few months back to use for parts, and got this turbo with it. I had no reason to think it was anything different from a standard T2, so I put it on the shelf. This evening I offered up my standard downpipe and found the exhaust housing is a T25/28 style, so I think my bargain engine has become even more of a bargain than I originally thought. question is can anyone tell me the spec? It's got AR64 on the exhaust housing, a turbo technics tag on it with S116 (I think) and says airsearch on the compressor housing?