Guys I need some help! Is there a difference between HID headlamp and xenon headlamp. Cause I think I want to get the headlamp. The reason is, I find the the light not properly focused and the distance of the light to be the same or even a little shorter then when I had the yellow lights on.Could you guys tell me where to get it, what kind I should get and the price for 1. I only need the headlamp cause I already installed the kit it is WRX. Please help guys!!