I noticed a signifigant improvement in my srt4 switching to $450 Phillips HIDS. The were 4000 or 4500(cant remember).

Keep in mind as temperature(color) increases (yellow to white to blue to purple) the lumens(how brightness is measured) decreases.

The way the light is projected on the road is determined by the design of the headlamp assebly. The pattern shouldnt change based on switching to HID's.

Feel free to correct me if i am wrong.