These are fully adjustable Watts link bars for your FB  RX-7.  They allow you to adjust the alignment of the watts link after you lower or raise your car.  They will also not bind because they use rod ends instead of bushings.
 
Unlike other companies, the bars themselves are made from 1.25" DOM tubing for superior strength for high HP applications.
 
Misalignment spacers are included, use your existing bolts