This carbon fiber rear shock tower stiffener for the XX4 has a hidden feature: You can still use the stock wing mounts, or you can opt to run wing mounts from the Associated B5m or B6 series using the extra countersunk holes.
This carbon fiber rear shock tower stiffener for the XX4 has a hidden feature: You can still use the stock wing mounts, or you can opt to run wing mounts from the Associated B5m or B6 series using the extra countersunk holes.