I believe they are completely identical except for the 2 front slots. If you have an aftermarket fmic then you may need to trim the back of the slots shorter to fit the bar on but that's about it.
Note I could be entirely wrong!
Where are you getting the N1 bar? I need a new lip and want to put the N1 slots on my std bar, maybe it would be cheaper if I just bought an entire N1 bar instead.