~ Pair of extended front upper arms for FD3S Mazda RX7 1992+ ~ Slim design for maximum steering angle clearance ~Laser cut, TIG welded steel plate contruction ~ Can be adjusted approx 40-75mm longer than stock using stackable CNC aluminum outer joint blocks to increase track width ~ PTFE lined spherical bearing mounts with chromoly outer joint ~ Relocates upper joint forward to re-center the wheel when using our trailing spindle Limit Break Knuckles ***Install notes: Not meant for use with OEM knuckles due to altered outer pickup point position. Some coilovers are thicker than others and may interfere where they pass through the center of these arms. Check for interference before driving the car. Curved side of arm meant to be positioned in the rear for tire clearance at full lock. Mounting tabs on the frame must be slightly trimmed for clearance due to narrow arm design.