Another option is to pick up a set of H4 square headlight lenses / drivers from your local parts house. Install them with a set of H4 PIAA 85 / 125 watt drivers and the relays mentioned in the thread just above.
You'll be simply amazed at the results, incredibly bright lighting on both my 80, and on my 96. Make sure you buy the lenses with the European light pattern if you're gonna run the PIAAs, the 85 watt low beams are literally brighter than stock high beams (65 watt), and you'll annoy the heck outta everyone without that nice clean light cutoff. There is a very mild dark spot up and to the left where the light is cut off, when aimed properly, but you can still see well enough to avoid anything that may be lurking there long before you hit it.
