Designed to replace the softer rubber voided OE mount that is prone to cracking, allowing for excessive engine movement and wheel hop, PFF5-220 Lower Torque Mount Bracket & Bush (Yellow 70A and Purple 80A) is 300% stiffer than the worn OE mount and recommended for fast road use for standard or mildly tuned cars. Combining a CNC machined aluminium lower torque mount with various durometer bush options to suit differing states of tune, it’s a great way of reducing engine movement for more balanced on/off throttle handling while improving gear shifting precision. It’s also super easy to replace – just two bolts and it’s out with the old, in with the new and no pressing out of any rubber! A small 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. Load v.s displacement graph showing Powerflex PFF5-220 is 300% stiffer than the original rubber mount.CNC machined and anodised 6082-T6 Aluminium bracket. Soft rubber in voided OE mount is prone to cracking, allowing for excessive engine movement and wheel hop. Unique dual compound design to balance performance to limit engine movement with minimal impact on NVH. PFF5-220 replaces both shapes of OE bracket to cover OE numbers 22116783094, 22114052474 & 22116772040.