I just had a check on the AURA website and im assuming ur globes are H7's? If they are, and you wanna get HID's for ur high beams as well, you will need to get 2 sets..
If I have not mistaken, certain brands(such as AURA) produces globes that has dual-chambers which allows you to use low beam and high beam from the single globe and its only offered on H4 sizes..
Also be reminded if you have 2 sets for high and low beams, you'll also lose some engine bay space as you've got double the amount of ballasts...
Hope that helps
P.S. I've posted the color chart on my previous post if anyone wants to know what is the color for different Kelvin ratings..