Mugen Seiki MRX5 WC Rear Lower/Upper Suspension Arm Set. These are the updated "B" arms that feature more material added for increased strength and help to prevent flex or arm twist. This helps to improve traction when accelerating, and stability at corner entry.
These are direct replacements for the MRX5 WC, but are compatible with the MRX5 as well. Package includes one rear lower arm, one rear upper arm, and one rod end for the upper arm assembly.