JDM dc2rs are rated at 200hp whereas AUDM dc2rs are detuned a bit to 187hp. Most likely due to lower octane fuel and also the different header design. Oh and also the larger cat due to different emission requirements.

Apart from what Jim8oy mentioned, I can only remember JDM 98spec has HIDs standard.

JDM 96spec had smaller brakes and 4 stud (4x114.3) 15" wheels. Brake size AUDM is the same as 98spec.