Well, I know that it doesn't come with an EGR system. I talked to someone up here who installed one, and just hacked a homemade EGR into it.
You could probably pass emission without EGR though. Unless it's a visual, the testing is a joke.
I know a guy who blew his rings from cranking up the boost too far on his SR20DE, and he passed emissions anyway by retarding the timing to 5 (instead of 15-17). If you really want to pass, you'll find a way to do it.