Description PFF5-4601-60 is for the earlier models with 60 mm mounting - check diameter before ordering. The 66 mm mounting is much more common. Type Street or Black Series
Powerflex BMW E46 3 Series / Z4 Front Control Arm Bushing - 60 mm Alloy Outer Centered MSRP: $356.69 - $372.64
Powerflex BMW E46 3 Series / Z4 Front Control Arm Bushing - 66 mm Alloy Outer Centered MSRP: $359.59 - $374.09
Powerflex BMW E46 3 Series / Z4M Front Control Arm Bushing - 60 mm Alloy Outer Eccentric MSRP: $363.94 - $381.34