^^^
I also have found that Phillips Xtreme Vision bulbs were a definite upgrade for 3rd gen headlights.
In fact, after putting them in my truck and seeing how good they are, with ZERO downsides, I started running them in ALL of my families vehicles !!
Of course retrofitting either DIY or aftermarket PROJECTOR grade headlights into the 3rd gen housings will work much better then the simple bulb upgrade !!!
I agree. Projector headlights are a definite improvement over stock. But, for me, I like the way my Stock 06 headlights look. I'm going to see if the newer LED bulbs can be adjusted enough to work in the factory housings. From what I've read, they can. Plus, I would save a lot on cost if this would work.