It doesn't actually. We recommend using solid bushings which then solidly tie the subframe to the factory frame support crossmember which is underneath the seat mount pan. Our frame connectors and crossmember then weld to that factory crossmember. This way the entire car is now tied front to back and has even greater torsional strength side to side. It also makes it a bit easier to remove the front subframe if need be.
Check out our install instructions found at the very bottom of the connector's web page at the link in my last post. They explain how it fits together and has cool visual aids.