I was very diappointed with the stock headlights on my 2003 F-150. No penetration. Virtually useless on dark mountain roads at night. The Sylvania X-2010 HID kit is a quantum leap in light propagation and focus. Nice tight, well-defined, incredibly bright beam. The H9 high beam bulb does an amazingly goo job in adding light where needed. The kit is a supremely well-engineered package. It truly IS a plug-and-play installation!
Bruce (the owner) was right on all counts. Can't recommend it enough!