Car-makers don't use HID in high beams for a reason.
Xenon doesn't provide the blue-white color of HID lights, it acts as the igniter for other HID gases sealed in the bulb, otherwise HIDs would take a few minutes to get bright. I can't tell from the wording of your post whether your Porsche came with OEM bi-level xenons but it sounds like it didn't. If it did, you'd note that the xenon in the lights ignite and there is a slight lag while the other HID gases ignite and warm up. The lights also level for load (not for angle, another common misperception).
This time lag is what makes them impractical as high beams.
If you're looking to create the effect, you might be able to switch the high beam bulb with something that gives off a whiter or bluer light. It's an H9 bulb (12 V/65 W).
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Last edited by SD987; 09-07-2006 at 09:30 AM.
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