Fits the 1ZZ & 2ZZ Toyota engine only. PFF34-602 acts to stiffen the voiding of the OE mount, helping to restore a level of responsiveness expected from such a vehicle. Made using our Black 95A durometer material, it provides a no-compromise performance option for track-focused builds. A small increase in NVH, usually at idle should be expected when stiffening the mounting between the engine/transmission and chassis. The harder the material used, the greater the NVH transmitted.