you don't lose it. plus rebased HID Kits are ricey.. you are going to blind the F out of everybody, that's why the states and local officals are ticketing people "modifing" their headlights

how much that thing will cost you ? $300+ i rather do a retro.

Pick up projectors Valeo ECE/DOT E46 or even E55 for $180 tops unless you got some real money to spend go for TSX, TL, S2000 or EVO VII projectors they run $230 +

And pick up some OEM Projectors for $200 & work from there.
h4/9003 housing = worst housing ever for HIDs