When you start adding power to your Mustang, you gotta be able to put it all to the ground. When your Fox Body flexes you loose the ability to handle all that power. Keep your ponies planted to the ground with 5.0 Resto's 1979-93 Mustang chassis stiffening components. These parts will help tie your chassis together, giving you a better handling car. Shop Latemodelrestoration.com for all of your chassis stiffening needs!