Haha, awesome, im ill and cant sleep so i just been doing some research, lots of research!
Its a Garrett GT60
Good for upto 2000bhp it seems

(tho with the spool friendly .84 housing im sure its not that much, but their minimum rating is 1450bhp, so its obv still good for 1600bhp+)
2000bhp GT series turbo, unused, nice small exhaust housing, best 90 pounds i ever spent