I received my 6K D4S HID bulbs in the mail earlier today...obviously making it a priority to install them the minute I opened the package.
I've posted pics of the installation and before/after pics of the factory 4300K hids vs. the 6000K hids.
Bulbs look pretty much the same.
Remove the light compartment cover to access the HID bulb.
Remove the wire connection to the HID bulb to access the HID bulb. You will need to twist the silver **** about an inch counter-clockwise to unlock the connection.
There are two spring clips that have to release in order to remove the HID bulb. All you have to do is pinch both sides until the clips pop out of its retainer. The clip wire is held by a small screw (see picture) so you won't have to worry about it falling out of place. You can then remove the factory HID bulb and install your new one.
Once installed, reassemble the spring clips, connect the silver **** and lock it in place, snap the light compartment back in place, and cross your fingers!
Make sure the leave the HIDs on for atleast 15 minutes to break them in.
Here are some before & after pics of the headlamps compared with my 194 5-LED Super Wide Angle parking bulbs.
I am soooooooooooooooooooo pleased with the turnout!
The 6K's match better with my parking LEDs.
If any of you are interested in getting these D4S bulbs, check out http://www.xenonvalot.com/
They have great customer service and they ship anywhere in the US via EXPRESS mail!