Further improvements were made with the introduction of the SA 365 N1, which had a substantially redesigned Fenestron anti-torque device, and with the SA 365 N2, which was equipped with more powerful Turbomeca Arriel 1C2 turboshaft engines.
Realizáronse máis melloras coa introdución do SA 365 N1, que ten un dispositivo anti-torque Fenestron redeseñado, e co SA 365 N2, equipado cos máis potenes motores turboeixo Turbomeca Arriel 1C2.