Now this is cool

NASA Spec Miata legal! Bolt in 3 degrees of negative camber.

More stuff -> https://www.flyinmiata.com/extended-...all-joint.html

http://i.ebayimg.com/00/s/MzkxWDUwMA...Vihjy/$_35.JPG

http://mazdamotorsports.com/webapp/w...EATUREDPRODUCT

These are:
1. Just as effective
2. Much cheaper
3. Race proven, all of 2015 in Spec Miata (NASA & SCCA)

The only issue is the bushings don't work well with 9" wheels.