not so sure about 260kw but when i was getting my gtr equipped tx3 dynod at jaustech in adelaide[darren masters was the BP god] there was another gtr tx3 there making 246kw at all fours[hub pack dyno] with a standard engine/turbo, bigger injectors, motec, zorst and front mount. Although next time i saw it it wasn't running after smashing its dogbox. I was also getting my gtr box rebuilt. The boxes are absolute shit[i'm on my 4th] but the engines are gold. Although i love the engines at the end of the day i believe there was only ever 2500 made for group A homologation so they are hard to come by and they will never have the aftermarket support like a SR or 4a etc. I've been tryin to post my pics of the setup i had in my corrolla but i haven't worked out how to get my pictures up yet. Hopefully soon.