WANTED S2 260 ECU / 440 injectors/ fuel pump

Looking for an ecu to upgrade the power on my 220 bhp car to 260 or above , so ideally an ecu  that has been previously factory flashed, it needs to suite a pre 2008 white dialed DBW throttle car .

would also be interested in the hardwear to suit, 440 injectors/uprated fuel pump.

Thanks.