There are people who can re-map it for you. I think they solder in a socket for a flashable chip. Sometime ago Porny, the resident expert, made a post about the difficulties that can occur by fitting a later flashable ECU into the earlier set up - a search might reveal the post if you were interested.
On another issue I want to re-map mine and would love for the anti-stall to improve not sure if it will, though a smoothed out curve might help with the transition from anti-stall to throttle?