H7 - 5300K McCulloch HID Kits Special @ $270 tax in!!
#11
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Do I need to trim the base of the D1S bulb to make it fit into the H7 bulb holder or anything?
Let me know!
Let me know!
#12
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As for the D1S bulb, you would need to purchase the correct bulb type. I don't think the H7 would fit onto the oem D1S base on the headlights. Also, I believe that the D1S and the D2S are interchangeable.
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assuming that they have oem Xenon lights and not halogens. If you have regular halogens headlights, then all you have to do is purchase the correct bulb base, for the Audi A4 and S4, which is a H7.