Sorry but the standard map is quite good, thats why nobody can improve on it
If you plan to keep the car save up and buy a blower, an axtra 140 hp turns it into a real sports car, on par with a maseratti from 50 to 99 was following a 05 reg along M3 this afternoon he couldn't wait to floor it as soon as the road works finished, one thing he didn't bargain on though was the mg keeping up