Powerflex PFR5-1913-13 polyurethane rear anti-roll bar bushes for the BMW F30, F31 and F34 xDrive. Direct fit for 13mm rear ARBs - measure yours first if uncertain.
Sharper turn-in and more consistent rear control on fast road or track day use. Polyurethane resists deformation better than rubber, so precision lasts longer.
