I got mine high flowed by garett in melbourne and MTQ in Sydney done the rest. Cost me round $2500. Ive got a built engine by atomic performance but there are guys on here with 400 mark. I'd go surge tank with pump, cooler, 4"dump 5"cat 4" system, I am using my stock injectors high flowed as siemens 60lb weren't great, CAI, valve springs should be right I think. Anyone else got something to add on? What are you after mate?