I would highly recommend a HID Projector swap for your OEM halogen projector. They make a kit that is a direct bolt in over at
www.theretrofitsource.com.
I would use their morimoto brand if all you wanted to do was swap the bulbs to a HID version. This will increase some brightness but in no where will it be as close to a proper retrofit which wouldnt cost too much more. (125-145$ more in parts).
LED bulbs are really hard to recommend for the highbeams. ever reflector is different and every LED bulb is different the way they position the LEDs on the bulb itself. So what may work for 1 cars headlight well wont work for another. I would just leave the stock bulbs in there.
https://www.theretrofitsource.com/co...C54404%2C48188
295$ for the full retrofit kit, that will give you properly designed projectors for HID bulbs that are a low beam and a highbeam (you would also have your OEM high beams leaving you with 4 highbeams!).
-B