The Blackbird - Subframe, RTABS & Diff - E30
The Blackbird Combo completely refreshes the rear suspension in your e30. It includes a set of Rear Subframe Bushings (12mm Riser or Regular), Rear Trailing Arm Bushings & a Solid Differential Mount. You can add the 12mm Subframe Riser Bushings in the drop down menu.
This Combo will dramatically change the responsiveness of your BMW's rear suspension. You will notice a slight increase engine vibration at low-to-mid range RPMs, but this trade-off is well worth it.