glare shield is a misnomer, nothing will help fix a problem that cannot be repaired.
first you have to understand one law:
- a headlight's optics are designed to work with matching bulb (ie: h4 headlight, h4 bulb)
then you can move onto level 2:
- a xenon bulb creates light differently than a halogen, and different than fluorescent, etc.
not only are the bulbs different, but the light output is doubled or tripled, so its even more important to properly disperse the light. much like installing a motor that is 2 or 3 times more powerful, a chassis will need additional reinforcement.
do yourself the favor, buy a pair of cibie or hella h4 headlights and a pair of high quality bulbs, thats all you need.
reference of the article, in case you guys missed it:
ClearCorners.Com [ automotive lighting knowledge base ]
mike / clearcorners.com