Reduce chassis flex and increase the handling capabilities of your 1979 - 2004 Mustang with tubular, weld - on subframe connectors from BMR Suspension. The Fox chassis flexes dramatically, even with mild amounts of torque and horsepower. BMRs subframe connectors are manufactured from heavy - duty 1 58 - inch steel tubing with laser - cut CNC - formed 316 - inch steel plates. This adds loads of strength in all the right places. These weld - on subframe connectors are engineered to considerably strengthen the chassis and reinforce the rear suspension. The SFC024s connect the front subframe and rear subframe, linking the front and rear of the chassis together.