Suspension Secrets BMW M3/M4 Adjustable Rear Drop Links / End Links (F80/F82/F83)These BMW F80 M3 and F82 M4 rear adjustable suspension drop links end links from Suspension Secrets are a great upgrade if you have lowered your BMW. After lowering your BMW, the anti roll bar is pulled upwards into the chassis as geometry of the drop links mounted to the wheel hub assembly and the anti roll bar is changed. As a result, the anti roll bar can end up colliding with the chassis or the suspension arms. With the Suspension Secrets