The Yellowbird - Subframe, RTABS & Diff - Z3
The Yellowbird Combo completely refreshes the rear suspension in your Z3. It will dramatically change the responsiveness of your Z3. This combo includes a set of Rear Subframe Bushings (12mm Riser or Regular), Rear Trailing Arm Bushings & a Solid Differential Mount. You can choose the Subframe Bushings in the drop-down menu.