It could be the housings you have. I replaced my fogs with some cheap eBay housings and although they look like oem the light focus and output is horrible compared to the oem housing. You could always switch to HIR 9011 or 9012 bulbs the Lumen output on them is much higher then regular 9006 bulbs. The idea when they created them was to give you 75% of the light of that of hid at 25% of the cost. I bought a set of Anzo projection head light housings for my 05. They were terrible as far as output and focus. I sold them and found a set of oem GM denali projection housings on Craigslist for $200. They throw light much farther down the road than the standard GM housing did. The cutoff line takes a little while to get used to. I have seen many complaints about the high beams on the oem denali housings and I agree with the complaints, they basically shoot straight up and are pointless unless you do the 4 high diode mod. You Also Lose some Peripheral Light With the denali housings but overall I am much happier with them.