CDC does not need any flashers etc. you can call it what you want but it is pretty much plug and play, you unplug and plug on one side, on the other you run one wire into an already existing connection in bulb housing, only mod you have to make at all is using a razor cut a 16th of an inch slice in the rubber isolator to make room for the one wire. Thats it. NO core charge etc. Very easy to take back to stock. I love em as do all my buddys. Oh yah they do use all 3 bulbs, not just the 2 like stock, that is what the extra wire is for. Good luck on whatever you choose.

 

well I installed it before I started getting any answers back, I like them and will keep them especially for the price, I was just wondering if one was a better product than the other or any other insight other than the install. It was very simple, probably one of the easiest installs I've done on a car. Thanks for everyones comments.