Setting the scene....
A damp private track in backwoods of Yorkshire, the air rank with the odour of exhaust fumes and stretching out in front of you a thin sliver of gnarled black, damp, partly muddy, Tarmac curving gradually uphill into the distance. The gearstick snicked into manual mode and the ESP turned off, revs build and you are off..........the nearly worn tyres slip and grip, your head and eyes go funny with the G force and...........

Not bad to say it isn't even set-up fully yet the bum dyno said more power and the software calculates out at 447bhp. There's definitely more than spring pressure by the looks of it. 1/4 mile figures when I can after set-up.
