See I bought the car dead stock in October last year. The car had only been over here for a few months when I bought it. The car belonged to an Australian working as a teacher who was planning to move back here so he sent the car to Australia then never returned so his dad (who is living here) had to sell it. I've got all the service receipts and I think I have a receipt here from Nismo Japan for a timing belt change at 114,000km and when I bought the car it had 114,800km.
I took a guess at maybe the timing is advanced to high because it might of been tuned for Japanese higher RON petrol? But I am in no way mechanically minded so I've really got no idea.