Citroen AX Mk1 & 2 (1986-1998) Front Lower Engine Mount - PFF50-106BLK 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, especially on diesel vehicles. - NOTE: Price is for CAR KIT, NOT per bush… Powerflex price their bushes individually, but we have combined the quantities to make it simple!