Got mine many moons ago.. place doesn't even sell them anymore. You can try OPM motorsports, they might be able to help you. Personally, I don't think I felt any good with it on my car, and it had a habit of going klonk I think against the hood. Took it out and sold it when I got the CF hood in, never missed it. *shrugs*
I know that DC Sports used to make them for the 1st gens... However, their strut bars weren't very functional. If you can, custom fabricate one yourself. That way you'll have a say in the strength of the materials. Try to model it after the Neuspeed bars for the 2nd gens...that's probably a good starting point.