reading the mag there seems to be some dodgy dyno figures, claiming that the accepted loss for gen 111 V8 atw is around 17%, when street commodores looks more at 25-30%.
The flash tuner one the stock ss reels of 224kw atw the car has 250kw at the flywheel.Then after mods it has 240rwkw. The figures would be accepted by many as being well over 300kw at flywheel for a commodore, that dyno operator is dodgy in my opinion.