My car only got 250 BHP on PDT's own rollers and that is with 2+ map S3 and forge twinter. The only thing missing at the time was a intake. I got 259 on dyne dynamics rollers last year without the HPFP pump and 2+ map. Once i added the intake i managed a 13.7 on the strip at inters, which if you check the fastest Ko3DSG cars on Jonny's list is ahead of all the competition i think. 
What i am trying to say is i am pretty sure my car is running well and near the maximum for it's spec and yet only got 250 on PDT's rollers, and yet a stage one car with his own map managed an incredible 262. 
Just my opinion of course but something smells fishy to me, I know that revo's main aim is to get the best figures of all the tuners, rightly or wrongly, so how come Dave has managed to turn 2 fish and five loaves into a banquet. 
I understand your scepticism, if I hadn't seen the proof then I would also be saying the same. The benefit of DD dynos are that they display the compensation calibrations at the bottom of the screen, so if someone tries to manipulate the final figures it's simple to see it has been done.
You can't compare a Revo product to this product as it is a different item, as a Revo dealer I understand and know the limitations of the software, with a custom written map there are no limitations as such and with plenty of research and development you can achieve very good results.
You could say that the dyno is reading high, but one of the cars in question made more or less original power, the car tuned today made a standard figure 2 % higher that expected, and after testing various map versions we settled on a power figure of 258 bhp.
If in doubt, I will gladly post the power graph, complete with atmospheric conditions and compensation calibrations for scrutiny, even send them to DynoDynamics to be checked if you like.
As for strapping with a bungee cord, nice idea but strapping a car in that manor on a dyno is not only highly dangerous but also the car would not produce a clean smooth graph as it would simply wheelspin and pull all over the place, as that Leon did in that video
During the test on all cars they are strapped in the same manor, just because your car (topcat) didn't make great figures, doesn't mean it is slow, it just doesn't make as much power as another car, the dyno measures power and unless it falsely calibrated (easy to see if this has happened) then it can't discriminate from one car to the next.
Why does this stage 1 / custom map make more power that an equivalent stage 2 branded product ? Its all in the mapping, And to someone that understands mapping and logging, if you compare the two then the reason for the strong torque curve and good power figure the reason will be obvious. I am sure if this change was made to many other stage 1 maps they could achieve the same but it's not a conventional map that gets adjusted it's usually ignored due to the complexities involved, I have however seen very similar power from 1 other companies maps, they also adjust this parameter in a similar way, so it's by no means a new 'miracle invention'
Dave.
