| lots of other people know though... They attatch to the headlight and emit a pattern that is then read by a headlight aiming machine/computer, which then tells your Nissan mechanic how to adjust your headlights properly. It's not something that a person can do in their garage, it requires the machine.

Putting eBay "performance" parts on your Nissan 300ZX is like putting Pep Boys wheels on your Cadillac Escalade... even people on welfare know better. |