Most of the works done by the previous owner. T04z turbo, tailshaft, induction, intercooler injectors true trak etc. I found the t2s and remsa pads sufficient for me at the moment and standard rears but others may disagree. I have not yet track the car but will want to when I have some spare money. There's a thread in this forum that guide you thru the processes of what needs to be done depending on what power you're after. I'm still new to the falcon scene so can't really help out but I think it depends what you're after from your car.