This is by FAR the best looking. It's not specifically made for our cars, but it doesn't matter. Just get the right fittings for it. You'd want a 1/2" NPT to -6AN adapter if you want to use AN fittings, which would be the nicest. You can also take the top off, but it's just a bit more involved than the RX. This is the one I've been planning to do but haven't yet.
http://store.42draftdesigns.com/Ulti...NPT_p_466.html