i have a impreza prodrive 1995 2.0t.they neva done anything to engine,just interior,alloys and suspension.i have fitted a ihi turbo td05,full stainless,uprated top mount,walbro 255 and z4 MINES ecu. i would like to put yellow injectors in,and perhaps fmi. would i have to get the car mapped or because of the kind of ecu it is would it work without mapping?? i hav spent quite a bit of money now and want to try and avoid giving mr forrest £800 if i can. can anyone help me please? thanks jason