PIAA

These solutions fit will in the stock foglamp space.
 

Model (links are to pics on CBT Imports)	Fog Candlepower	Driving Candlepower
940	13,200	63,500
960	18,800	90,000
90 Pro XT	15,000	111,000
1500 Driving Clear (Kit is 1552)	NA	72,000
1500 Driving "Ion Crystal" (Kit is 1553)	NA	65,000
1500 Fog Clear (Kit is 1550)	27,000	NA
1500 Fog "Ion Crystal" (Kit is 1551)	24,000	NA

For a good set of pictures of all the PIAA solutions, check out CBT Imports PIAA Page.

Some of the PIAA solutions can also be ordered via CarParts.

"Blazers"

Also, Tony Antonuccio offers this solution :

After years of hunting for a cheap fog light solution for my 2nd Gen, I've finally come up with one.

The units are sold by Wal-Mart under the Blazer name. They cost $50. They carry several types but I purchased the small projector units with 55W H3 bulbs.

Upon removal of the stock lights, I found that these Blazers fit perfectly in the stock opening with the supplied brackets, using the factory mounting bolt on the factory metal support.

I also was able to wire them without cutting any original wiring by using 1/2 of a spade lug (soldered to the H3 bulb wire) and sticking it in the factory connector. The whole gizmo was heavily taped for waterproofing.

The light output is far superior to the stock units. Additionally, the smaller size likely permits additional air to flow to the brakes.

They are part # C6075K.  The projector lens is round while the housing is slightly oval.
 

If the stock wiring will "bottleneck" an aftermarket system, I would not use the stock wiring.  If the lights aren't getting all the current they require.. it means there is a lot of resistance in the wires.. which means there's a lot of HEAT in the wires.. which means you can burn all the insulation off the wires and maybe set something on fire!  Here's what you can do:  Power (in watts) = current (in amps) multiplied by voltage (which would be 12V in this case).  Look at the watt rating of the fog lights you want to use and divide that number by 12 to get the current that it will draw.   In house wiring at least (AC.. not DC, but I think the ratings would be close).. a 12 gauge wire will be good for 20-25 Amps and a 14 gauge wire will be good for 15-20 Amps. 10 gauge = 30 amps, 8 gauge = 40 amps, 6 gauge = 55amps.   Get a tool that measures wire gauge, use it on your stock wires (which will have to be stripped), and refer to the above ampacities to see if stronger fog lights will work without burning up the wiring.