Running 1 bar you'd need a FMIC adjustable act and boost controller which u hav , Ported or aftermarket mani , decat , catback exhaust system , and for fueling Fpr and Fcd which would need to be adjusted on rollers or a Self learning ECU eg. JAM , BLITZ , MINES etc . or a EMU or other piggybac ecu's which u would hav to get mappped , Maybe a relocated airfilter . uprated fuel pump like a walbro 255lph . Stock injectors should be ok i tink , Youd be better off with uprated leads and a boost and oil pressure gauge to keep an eye on things . this is just off the top of my head and could be leaving out sumtin correct me if im wrong .
hope this helps you