Greddy Front Strut Tower Bar 93-96 Mazda RX-7 - P/N: 14043001 Product Model: GRD-14043001 Strut Tower Bars Suspension upgrades such as high performance springs, shocks and tires can add additional stress to the chassis resulting in additional chassis flex. GREX Strut Tower Braces improve chassis rigidity and reduce this flex. By using a monocoque aluminum triple tube shaft and stout, easy-to-install steel base plates, high strength and rigidity are obtained without unnecessary weight gain.