BMR Suspension designed the PHR006 to work well for street performance, drag race, and road race applications. The heavy-duty construction eliminates the deflection seen in stamped-steel pan hard Rods. Other pan hard Rods on the market include rubber bushings that will deflect under heavy loads. The 95-durometer polyurethane bushings of the PHR006 reduce bushing deflection, giving you much-improved, repeatable handling characteristics on the street, starting line, or in aggressive corners. The on-car adjustable design makes the PHR006 great for lowered Mustangs. This gives you All the strength and adjustability you need for great handling without huge increases in NVH. When performance is a must, rely on BMR Suspension .