the four.eleven gearbox that comes along with the JDM wrx is magnificent. the USDM WRX gearbox can be a POS in comparison, trust me. you'll be wanting to use the right JDM gearbox with the right JDM EJ20 motor.S TWINS AUTO Pieces If you're wanting a substitution engine ECU for your Subaru Forester by using a two.0-liter EJ20 engine and an computeri