I always bought them for my 99 and 03 monte carlo's and 04 avalanche.

Now with this 07, it have different light blubs. H11 and H9.

Sylvania only have ultra for low beam - H11

But I'm quite disappointed that they don't have ultra for H9... I called them and ask why. They said not enough for market.. really? There's got be enough impala for them to marketing..

Any suggestions on what blubs to buy for H9 that will give me a lot of lights at night?

I also use H17 for fog light... do u have better recommendation for blubs for foglights?

Thanks