all i know is what the rollers were saying ! i couldnt say if they were rite or not cos i havnt driven any other cars with that many horses ,i do know tho that it was shitloads quicker than when it was at 350 brake , and im pretty sure the rollers at power engineering are close! i mean i was 4 up the night i got it back and it was bone dry and 1st 2nd and 3rd it had no traction whatsoever i had to keep feathering the power in at 70 mph cos it just wouldnt bite the road ! i was seriosly happy with it , specially when a friend of mine who has a car tuned by M,A,D to approx 360 brake wanted to play ! it was like racing an xr3i ! i kid u not ! didnt last long tho !!