BBK Performance Parts Gripp Subframe Connectors for Ford Mustang applications will reduce chassis flex, improve road handling, increase drag racing firmness and add overall performance. Subframe connectors work by tying the front and rear frame rails together as one for increased strength and stability. Increasing chassis regidity also delivers a more safe and responsive vehicle in both street and racing-type conditions. BBK Gripp subframe connectors are full-length, constructed of box steel and can be bolted or welded in place. Each subframe connector comes with a durable powder coated finish for lasting use and appearance.