Fitted with Nismo turbos - but is it?

[djr81]

I have noticed lately that the prevalence of import GT-R's purporting to feature Nismo and/or other aftermarket turbo chargers is on the increase. Unfortunately on arrival a number of the cars in question are somewhat less than modified. Only yesterday I was looking at a recently imported R32 that was advertised as having HKS 25-30's - but in reality had only dump pipes fitted.

Leads to a couple of questions:

Is there an easy check on arrival to identify stock turbo chargers? (Other than ripping lumps of exhaust and or induction piping off the car)

What other supposed upgrades (Other than the obvious winding back/replacing the speedo) have a history of dodginess.

[nmcmahon83]

As far as I was aware... All car's that come in to Australia need to be returned to stock before they can undergo compliance... Ofcourse most places replace the parts removed once the car has been complied, but there would be the odd dodgy compliance workshop thatwould sell the parts seperately.... perhaps this is the issue...

[Ants]

Unfortunately because the turbochargers are located in hard place it is very difficult to determine if stock on aftermarket turbos.

All I can say is that standard GTR turbs have a/r 0.42 marked on the compressor cover and nismo ones have a/r 0.60.