An upgrade to matrix headlights will involve at least changing the control module and obviously new headlamp units including ballasts and fans. You may also need a new power module for the fans, a wiring harness and coding.
They look very smart but it's likely to cost you £3k if you are using new parts.
A company like Kufatec or BKS tuning may have more information.
Post a few photos, we dont get many modded D4's on here.
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