Hid Swap on a 2006 A4

[KartboyWRX]

So, is it possible to install with correct specifications? besides i believe the bulbs that are on my car most likely are h1...

the only problem with kits is that the HID bulb is considerably longer than the h7 (most of the halogen bulbs) which places the filament in a different position in the projector. You have might have to use spacers to position the bulb away from the shield to replicate the distance of a halogen h7 bulb filament. Chances are you'll get either bad light output on the ground or immense amounts of glare without having the spacing right.

DynamicSound:
Do you guys have h11 bulbs in 4300k?

[DynamicSound]

So, is it possible to install with correct specifications? besides i believe the bulbs that are on my car most likely are h1...

There is no such problem. The bulbs are machine balanced to match OEM Halogen specs. So they shoot the same as the halogen except much much brighter. All A4's since atleast 96-09 take the H7.