Identify this turbo

I'm pretty positive its a 16g based on the staggered larger to smaller fins but the serial number is missing the 2 numbers that specify what 16g it is. I've also read that the mounting flange on a legit EVO III 16g's will be curved around the bolts rather than perfectly straight. Mine is curved. Here is a pic. I can take more if need be.

 

Not the best pic

 

What should I take pictures of?

 

[mitsuturbo]

The compressor wheel, the entire compressor housing, the wastegate actuator, and the turbine housing where it meets the exhaust manifold.

 

Upon closer inspection there is a number stamped there. 49178-01470

 

[theevozero]

e3 16g.

 

[mitsuturbo]

If the flange on the turbine housing is not flat on all four sides, then you've probably got the "good" turbine housing, with higher nickel content. Less chance of cracking, but more of a PITA if you bust a bolt off in it or strip threads.