The 2003-2017 Nissan Frontier vehicles all use the same dual beam 9007 bulbs for their headlights. The 9007 bulb is a dual-filament halogen bulb has both high and low beam in one bulb. You can upgrade the headlight to LED or HID to get more light output.
We recommend LEDs over HIDs for reflector headlight upgrade. The reflector cup shoots the light from the light bulb out and the light output is less controlled. Therefore, an excessive amount of high output light sources will cause glare to the opposite traffic. If you live in rural or mountainous areas, or do a lot of off-roading where you really need the extra light – then HID might be a good fit for you as the HID lights works better in inclement weather conditions.
The 2005-2017 Nissan Frontier uses the H11 bulbs. The 2003-2004 Nissan Frontier uses the 880 bulbs. We do not normally recommend HID for fog light upgrade. Fog light housings are normally smaller, so the drastic light output increase will give you a lot of glare. LEDs tend to make better choices for Fog Light upgrades.
In your options for LED upgrade, we do not recommend the fan cooling LED bulbs for fog lights. Besides the glare issue similar to HID bulb, the life of the fans will drastically be reduced when exposing to an excessive amount of elements. The lower mount fog lights are close to dust and mud on the ground, therefore, are very easy to attract elements.