Quote:
Originally Posted by HP Autosport
Perhaps their tolerance for NVH is much higher, there is definitely more NVH with solid subframe bushings.
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No, there just simply isn't a detectable increase in NVH with solid subframe bushings. Having done nearly 100 of them in house now, none have ever said there is an increase in noise from the sub-frame bushings. The differential bushings, depending on type of material, will increase noise. There is no vibration or harshness increase from differential mounts, just gear whine.