i'm not quite sure the chassis difference between EG6 and other JDM EG such as EG3, but there are some differences between EG6 and local EG (i.e. EH)....the EG has nicer (maybe better as well) welding joints and finishing compare to EH...perhaps that makes the EG more sturdy than the local ones....nevertheless, the EH chassis is lighter, hence it is more preferable to those who race where weight is a factor (e.g. drag racing)...