DriftShop Solid Subframe Bushes SpecificationThese billet aluminium bushes completely eliminate subframe movement giving consistent dynamic suspension alignment. Stock bushes are susceptible to wear over both time and with performance use. As well as poor handling this places stress on the entire drive train.These bushes are compatible with all BMW E30. NVH will be increased due to the nature of these bushes if comfort/compliance is a concern we recommend Powerflex Road or Black Series.