krawler - dont know mate u will have to ask them.
it was done at DYNO SOURCE a 4wd dyno and was just be re-calabrated a week before hand.
gavin sayed another one of his gtrs made 617hp on a engine dyno and on the dyno source dyno it made 387hp@awhp
and that car has the works done to it with a HUGE single turbo.
wouldnt mind seeing what it would make on another dyno, prob another 60hp all depends on the dyno and how it reads.