Seen the subaru rally boys today, about getting my sti ppp to around 400 bhp, they informed me that I would have to replace the prodrive ecu as they cannot access it for a remap? I always thought the original ecu was remapped, they told me I would require an original ECU so they can remap. whats the best way forward, I did not want to start removing a £3,000 ppp conversion.

Help?