What's up buddy? I wouldn't do a 99 conversion. You could do a JDM SIR front end conversion, rear, side skirts, interior. If you want to set your EF off do that. PasswordJdm.Com sells the conversion. Are you planning on swapping your motor in future also. Do some searching many JDM conversion been done. Now you can get some 99-00 Si wheels w/ some 205-50-15's. Post some pictures of the ride.