Ok everyone. For future reference. Atr43 SS-1 is not an easy bolt on option. Needs new water lines and the oil drain needs to be customized, you cant put the rear exhaust nut on because the outlet flange is about 3-4 mm from the stud and the outlet of the compressor jams against the manifold, yer I can just turn the compressor housing to suit but then the wastegate actuator gets more pressure, the t3 flange and the Nissan 6 bolt flange or should I say flat plate with holes tapped in it is just welded onto the turbo, im guessing that it's a t25 exhaust housing with the flanges cut off.. Why the f**k did I think a cheap turbo was a good idea.