In the last Turbo mag they had one of these and the company in Japan (Pretty sure it was MCR) who had it had already built an exhaust that put it "well over 520ps" and they were in the process of cracking the ECU and building a better suspension because the owner of the shop said the factory Bilsteins were "soft on the track" it's be no time before these things are keeping up with 1000+ BHP Supras.