I just got my 2017 CX3 GS AWD here in Nova Scotia, Canada. Sadly mine came with the stock halogens no LEDs for me. The halogens in the CX3 are a lot less bright I find than what was in my 2014 Mazda 3 GT. I do a lot of night highway driving so I decided Im going to try and change my headlights with some LED ones.
The two bulbs that are in there are H11s and 9005s. I ordered the 50W 6500k 8000LM NIGHTEYE LED conversion kits from amazon. It should arrive early next week. Will post how it goes, and pictures updates of installation, before and after.