I was interested in purchasing new headlights for my 2007 M the previous owner "spray painted" a tint on them and started to chip I was interested in switching the HID to Halogen headlight assembly and buy Led Light bulbs and install them instead of having the HID system there are only 2 harness on the halogen light so would I have to cut the other 2 off?
Picture of current light housing(HID)
https://pasteboard.co/IytHyt3.jpg
https://pasteboard.co/IytHFXp.jpg
Picture of halogen
https://pasteboard.co/IytMqJ6.jpg

Why would you ever go from HID back to halogen? That's like going from 2019 to 1 A.D. lol.

LED headlight lamps are readily available and usually not very expensive. Here is why. To be effective, they need to be in a vehicle already wired and focused for them. otherwise, you get a nice color, but npo distance and improper beam. It would be better to keep the HIDs but use a good quality bulb with a higher kelvin and more lux. I recommend Osram or Phillips, depending on your budget. Best place to buy is The Retrofit Source - they get stock direct from the factory so you won't get cheap copycat bulbs sold at the name brand price. https://www.theretrofitsource.com/

I didn’t mean to say Back to halogen but i want to change my headlights to LED from HID

Like mentioned I am planning to buy new headlight assembly and install LED headlight and indicator bulbs, don’t really care about the HID

Ahh. Got it. These cars aren't intended to use LED bulbs. The projector bowl isn't designed for it as Larz said. Here is an example of an LED in a halogen projecter on my '13 Kawasaki Ninja ZX6R. And these were expensive 4-sided $160 bulbs. Not your Amazon special.

https://i.imgur.com/9lMfRnT.jpg

Replacing the headlight assembly will look amazing. When our ho-hum quality lenses fade and get cloudy it ruins the entire appearance. That's why every 6 months or so I spend a few minutes with the buffer and some plastic polish. They look brand new when finished. I suggest you do the LED to only one side at first, leaving a high quality HID in the opposite side. Compare them whilst shinning them at a white wall and driving about in your neighborhood. That way you can compare and decide which looks and works better. I use Osram CBI bulbs and when I'm next to a new Mercedes or BMW, there is very little difference in color and how far the beams reach. When I'm next to a wannabe LED car, it's sad for them.

I love the LED headlights that I have in my armada. But aren't all of the 2nd gen m series projectors no matter what model they are?