These control arms are built as a bolt-on upgrade for Ford Mustangs built between 1979-2004, excluding 1999-2004 SVT Cobra models.
Your stock control arms and bushings are made from stamped metal and rubber, which isn't made to withstand the loads of high torque and horsepower. That leads to deflection and flexing, which leads to wheel hop, rear end movement and unreliable handling. BMR Suspension designed these upgrades to handle performance environment loads, giving you better traction in turns and faster, more controlled launches.
BMR crafts these upper control arm upgrades right here in America using MIG-welded 1 5/8-inch DOM steel tubing, which is designed to transfer power to the tires instead of absorbing it. They then finish each piece with a sleek black hammertone finish for long-lasting good looks.