I've seen a few websites that say the 99 bonnie has 880 fog lights, and some others say they're H3. I need to know which they are if anyone knows. =)

Not H3. Should be 880, 885, or 893. Some are 38watt, some are 50 watt. Yours were 38 watts stock, so if you want to upgrade, pop in whichever of those part numbers is 50. 885 I think. You may have to increase the value of any fuse that blows. These should all have the same base, but take a lamp with you to be sure.

On my 94 they are 880'*.

The 92-99'* use the 880 series. Pre-92'* use the H3, but no clue on the 2000+.

My 2000 uses 880'* as well.

That'* easy advice to give Will, but there is a downside to that! Replacement cost of new Driving Lights are a Min of $120 Each! The reason for this is simple! The Higher wattage bulbs have a longer filament than the stock replacements do! This causes brighter lights, yes, but also causes excess heat! This heat WILL eventually crack the lens of the driving light & since lenses can't just be replaced, you have to replace the entire light assembly too! Best advice? Stick with tthe stock bulbs in your stock lights! If yoyu want better, get Blazers lights instead & ditch your stock light assemblies altogether! Reason I know this? I've done it already to my first set of lights!