Suspension Secrets BMW M3/M4 Solid Front Control Arm Bushes (F80/F82/F83)The BMW F80 M3 and F82 M4 solid front control arm bushes from Suspension Secrets offer an immediate improvement, as they remove all flex from the front lower control arm, keeping the suspension geometry fixed at all times under braking and cornering forces providing the driver with much more steering feel and confidence too. These Solid Suspension Bushes are designed and manufactured in the UK, using high quality components. They are CNC machined from