PFF5-5452BLK  Engine Mount Insert uses the same design as the Road Series part but with our 95A Black Series material to provide uncompromised  engine stability. Mount rigidity is increased by a huge 180%.  An increase in  NVH, usually at idle, should be expected when stiffening the connecting mount between the engine/transmission and chassis. The harder the material used, the greater the NVH transmitted. Fits 3.0ltr B58 engines only.