I'm glad someone mentioned the diff between the Osram-made silverstars and the Sylvania-made silverstars.
Osram owns Sylvania, the US market ones are the ones that have a slight bluish tint to them. The actual osram ones a completely clear glass.
I installed the sylvania made ones on my dad's yukon on both high and low beam, there IS a noticiable brightness increase over stock lighting, and both he and my mom percieve the light to be "whiter" then the stock halogens.
And my parents are about gramp's age.
: You dont want to swap relays on those 80/100. YOu're going to want to run a completely custom harness on them, preferably with ceramic bases. That'll keep you from overloading the stock wires, plus it'll give you the full effect of those bulbs.
PLEASE PLEASE PLEASE confirm headlight alignment after the install. Thats some bright light coming into oncoming traffic.
On the topic of headlight upgrades...
Replacing the entire reflector assembly with e-code's would work.
Ordering the euro spec part may be a hard concept for the dealer.
Like someone said. Make sure the headlights are actually ON and its not DRLS's that they're using.
Had a friend buy a used chevy car. Complained for 6 months that her headlights were too dim. One night i just happened to watch her get in the car and drive. Turns out, that she was pulling the thing out one click to get her running lights and gauge lights on. the "headlights" were actually the low wattage DRL high beam setting.
BTW. Hella's micro DE lights would tuck up under the airdam pretty well, and they put out an amazing amount of light for their size.