efi inlet manifold or modded e-rst one to accept injectors, throttle body to suit management system(cossie magagement-cossie throttle body-i think), fuel rail and injectors with pump and regulator e.t.c. to suit injector set up(depends on how much bhp u intend to run) obviously the ecu and loom, crank sensor wheel and pick up sensor, maf or map sensor depending on what management system again! blah blah blah, all parts depend on wat 'efi' u intend to run!! im trying to sort this side of my car out too