Powerflex ‘black series’ polybushes to fit either: Bmw e39 m5 rear anti roll bar (16.5mm) Bmw e28 front anti roll bar (16.5mm) Brand new still in box - £25 (retail price is £45) black series powerflex front anti roll bar bushes for Bmw e39 5 series. Fits 27mm anti roll bar (540i, m5) - £30 (Brand new in box, rrp £50) {} {} {} {}