Before you get too excited about torque figures remember a dyno set up in power mode (eg rwkw) will not accurately measure torque.
I mean, if the dyno was set up for a torque reading and you got 550Nm then that's an awesome result, but if it wasn't then there is absolutely no truth in that figure. This was a big problem after the dyno day with Dr Drift when everyone started saying "I have such and such Nm", when all their figures were complete rubbish.