After Scotty & Aarons experience; I'd be following their lead; Definitely look at removing, cleaning & drilling out the Oil feed banjo for the turbo; there have been a number of blocked ones, as it only has a 1mm orifice.
Due to the small size, it can block easily if the servicing has been "less than perfect" in Japan, restricting oil flow to the rotating assembly and you could well be sitting on a ticking time bomb for no real reason.
I believe Scotty recommended a 2mm hole for an OEM turbo, but I'm sure someone will pipe up if I'm wrong.
Definitely do the "wire cut" and if you've got the funds; do a shift kit; oh, and do a shift kit; they're THAT good.
Enjoy the new ride; and as Leon said; put up some pics, always good to see another one.