I Know Thier Are Alot of Aftermarket H4 Conversion Kits that allow you to change from Sealed To Composite but Ive tried alot and the best i've come across is the Hella Free Form 165mm Headlights. I Installed HID 5000K's Into them and they but out the most light ive tested in all of the conversion lamps, best of all the free form has over 50,000 points to reflect the light downward. If you plan on using HID's A Parabolic or any other type of relector such as a Halogen projector are going to give you crappy or extremely high or low light output in a blinding fashion. Your Going to Still Blind Oncoming drivers but a greater portionof thelight dispersed down and with correct Adjustment it puts out a Superior Amount of light. Just Figured I'd let Anyone Who Wants The Best , Also I Have links to a HID Bi-Xenon HID Projector For H4 Bulbs

I got mine at Rally Lights

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