I'm thinking about buying one of the kits off of treadstoneperformance.com. I only had a couple of questions regarding what size turbo to run. They make 2 kits, one with a t3 and one with a t3/t4. Which one would be better suited for a stock dohc zc? Also if I am OBD1 will I need the resistor box to run the DSM 450cc injectors? Also is the JDM P29 ECU a chippable ECU to run Crome or some other form of tuning? I am thinking I want to run about 8 or 9 psi.