hopefully as close to 350BHP as possible, been told by chris that he recommends the Omex 700 which will cost another £1800 including fitting and mapping, but i really need to stop spending money on the car. he said he can map the 500 to 350 but theres not much tuning for the fuel over 6k, theres only a couple address's so it will have to run rich, which i dont mind. so we'll have to see. fingers crossed though.