HARDRACE STREET SERIES HARDENED REAR ENGINE MOUNT 1PC SET MAZDA CX-5 12- MAZDA3 14-Reinforced engine mount made by hardness rubber create more strength than OE rubber mounts, reduce engine move significantly, and provide the maximum output under engine acceleration.. Offers a more direct connection between the Drive train and Chassis. Direct bolt on with OEM components. Increased stability during cornering and acceleration. Increasing the life span of the mounts and helps to put power down to the wheels