Nissan Solid Subframe Bushes Track driving puts a lot of stress on the standard subframe bushes. They just aren't up to the abuse we throw at them and can cause unwanted movement axle tramp and nasty vibrations particularly when an uprated LSD is fitted. These CNC'd aluminium subframe bushes for Nissan 200SX/Silvia S13/S14/S15 300ZX and Skyline R32/R33/R34 fit in place of the standard bushes 4 on top of the subframe and 4 below. If you are looking for something a little more compliant and daily driver friendly but still heavily uprated check out Powerflex poly subframe bushes.