the four.eleven gearbox that comes with the JDM wrx is great. the USDM WRX gearbox is often a POS as compared, belief me. you will need to employ the correct JDM gearbox with the appropriate JDM EJ20 motor.I believe the coil pack. Am I off foundation? I'll pick up new wires and plugs this afternoon, and maybe a coil pack, in addition to some EFI ho