Originally Posted by joonsup
1) Factory alarm should be standard on a bmw or at least if you get the premium package.
7) The standard HID xenon bulbs should be 5000-6000K instead of the current temp (4300K?)
All manufacturers use either 4100 or 4300k (most 4300).
That is the optimal lighting lumens at the optimal coloring.
5-6000k you begin to lose lumens and also the more bluish white the lighting gets it 1. creates more glare for on coming cars and 2. decreases visibility in wet weather significantly.