Made in our 95A durometer material for ultimate track/motorsport performance, it is a cost-effective and easy-to-fit insert, designed to sharpen throttle response; whilst reducing wheel hop and improving the durability and longevity of the OE mount. An increase in NVH, usually at idle, should be expected when stiffening the connecting mount between the engine and chassis. The harder the material used, the greater the NVH transmitted.