Hi Kieran,
It's a 1988 UK model. The one with the XJ600 engine. This one:-
http://motorbike-search-engine.co.uk/classic_bikes/fz600.JPG
I know when I got the bike it didn't have the correct exhaust system and I do believe it was the FZR600 system. But I thought all FZR's had the engine canted forward.
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Gary