I recently got a new car (Fiesta ST). It comes with H11 bulbs for the low beam. The light is decent, but I'm used to the HID in my Maxima (OEM D2R reflectors). I am thinking about replacing the bulb in the Fiesta for something brighter. Will I get a significant increase in light output from pricier bulbs such as the Philips XtremeVision or Silverstar Ultra? I know they have a lower lifespan. Another option is modifying a H9 bulb to fit the H11 socket. I'm kind of leaning towards this option, but I've read the life of a H9 bulb is only around 250 hrs. Opinions?