You really have 3 choices.
1 Replace the cracked pipe with an OEM new replacement, Amayama is the place to go here.
2 Repair the existing pipe.
3 Delete the EGR system, as Malc mentioned they are not fitted to all models, I have 2 JDM models and neither has EGR and it make no difference what so ever to performance or fuel economy.
Bear in mind the job is a PITA as access is extremely limited, to get close enough long extensions on wobble sockets to actually remove the pipe securing bolts are needed
It is also thought that the reason for the pipe fracturing is due to worn engine mounts allowing the engine to rock excessively so it may be wise to replace these at the same time.
I think Ruud repaired his without special tools a while ago, if you're around Ruud please chime in :)