Toshi tuned my wife's z32, and my friends z32 in March. Both very happy with the results.
He also had another go at my z32, because last time I exploded a turbo outlet coupler and could not make boost.
I have a graph from an 'experienced' tuning house on the northside of brisbane, that says 284.9rwkw at 17ish psi.
I can tell you that at 16.5psi now, Toshi's tune would destroy the dyno tune in every aspect. Response, driveablilty, idle, fuel consumption. Everything.
The car is much, much faster now on Toshi's road tune. Not even slightly interested to know how many kw it makes now.
Because faster is faster.