yeah, according to wrc technologies at silverstone the place where i hade it dyno'd before use a marha set up and it reads 5% more which would have given me about 321bhp, i also had a RR read 9bhp more than the marha which would be about 330bhp, its good bhp for an 8 valve, but all rollers are different so its no use comparing unless the cars are on the RR on the same day.
