One inherrent problem is oil control. Its potentially dangerous and rather annoying to rectify, ie. sump baffle plates, oil restrictors, overfilling your oil, upgrading your sump.
Other than that, just check the compression, and you may want to change to steel-wheeled turbos. Some people find HICAS annoying too.
Besides that its a great quick car. Oh and the gearboxes dont handle redline, 350awkw+ super quick smash-it-in-style shifts very well.