Usually, if no decompression kit was used and he wants to run on 95 gasoline (Premium) he would be on low 0.5-0.7bar of boost which should translate into 210-225hp for daily use (whitout Remap). With remap safely should run 230 and even 260hp if he needs some help from Super Premium gasoline (98). It's that 11:1 compression which is demanding for low boost setup. Installing a decompression kit would mean a higher boost available and 300hp doable with bigger injectors and a fuel pressure regulator (fuel pump I think is the same like in the 2.5/2.8L engine model)