PFF85-620 is made using our Yellow 70A durometer material and is suitable for standard petrol models or mildly tuned diesel models. For track/tuned models use PFF85-620P. Fitting this engine mount bush to 1.4 TDI 3 cylinders is not advisable. 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.