installing HID's into my gts
 

Looking into this : http://www.autocityimports.com/digit...0k-p-8328.html for my gts. Should I get that kind or just go with the headlights already with HID's and swap the bulbs?

I have those in 6k. I installed them with a DRL bypass harness. Instead of buying the battery harness from the online store I just bought JRox's (membername) harness. There is a large difference in price between getting new headlights versus just adding a kit to your halogen headlights. From $150 vs $1000+. The quality is also better with projector headlights too as well as safer for other drivers on the road.

I'm not sure if it's the same in your area, but in Nova Scotia it's illegal to have hid's without projectors.