How to tell a factory prodrive Forester XT turbo from a standard Forester XT turbo with prodrive bits stuck on?

I’m going to see this tomorrow with a view to buy, but I need to know what’s what as the seller can only say ‘it goes like a prodrive, but I’m not sure’.

From my limited research the factory prodrive version looks as above, but has an different ECU tune and upgraded exhaust.

Any help you can throw my way would be much appreciated.