Projector Headlights on a new 2015 Civic?

I have a new 2015 Honda Civic with the extended warranty, I'm looking to do some upgrades to it. If I install Projector headlights will it void the warranty? What will and will not void the warranty?

Almost any changes can be used as a reason not to honour the waranty.
You also have to tell your insurance of any modifications.
Keep the car standard while on warranty.

Yes, your warranty would become null and void immediately.