Export without intimation to central excise

You can export the goods with selfsealing so that no central excise officers are involved in documentation.  But you will have following issues:

1. You may not get certain benefits like DEPB (earlier), Duty drawback unless the export documents are signed by the Excise authorities.
2. There is chance of inspecting your consignment by customs authority if it is not signed by excise authorities.

Pls take care of these two things and proceed for self sealing.