I did them back in 12/00. I bought the kit from KarKraft. It was around 300 bucks total. It included new housings, and the Cobra light switch box, and instructions.
Wiring them wasn't too bad. There was a wire under the dash I had to snip, and it was a pain to get at. The box is a sinch, but if you have big hands be prepared to get cut up. In the trunk its just splicing in wires. I added a little extra work by doing the brake light mod also so that all 3 taillamps light up when on the brakes, rather than just the outer 2
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