Just found out that the previous owner had the turbo changed due to a borken blade on my P1 but the company doesn't have a record of what they fitted. Where on the turbo does it have the turbo model number if any?

I have looked at it and can see that it is labelled 'IHI Turbo' on the front and what looks to be 'H S3 6G' on the back part, does that mean anything?

Cannot see all round the turbo but if I know where it should be labelled I can try get into it.

Thanks
Chris