How To Tell? R33 N1 Gt-r Turbos

[mr_rotary]

Once gain I hope someone should be able to help out on this easy one

Previous owner has fitted brand new R33 GT-R turbos to my GT-R. How am I able to tell (can even barely see the snails) if they are R33 N1 trubos?

True or false? Do the R33 Turbo's have steel compressor wheels?

[wrxhoon]

A little hard to tell but the a/r on the snail should be 60 if they are N1's and they should have the ajustable N1 actuators too. The serial number on the tag will tell you the core for sure but its very hard to see on the car .

Normal 33 turbos are ceramic exhaust wheels, N1 are steel . N1 are much bigger turbos than normal turbos .