SuperPro Front Control Arm Lower-Inner Front Bushing Kit | 1993 Mazda RX-7 (SPF4623-90K)Superpro Front Control Arm Lower Inner Front Bushing Kit 1993 Mazda RX 7 Part #: SPF4623 90K Overview The SuperPro Front Control Arm Lower Inner Front Bushing Kit is designed to restore and improve the handling and stability of your 1993 Mazda RX 7. Worn or degraded rubber bushings in the control arm can lead to compromised wheel alignment, uneven tire wear, and less precise steering response. This kit provides a reliable upgrade or replacement