Perrin Performance [15-21 Subaru WRX, STI] Rear Shock Tower Brace - Black Release Bearings If only the right side

If only the right side is damaged

Skill Level: Beginner friendly - no special automotive experience required

Factory mounting compatibility - Bolts to original attachment points with no drilling or fabrication required

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If there's movement

Perrin Performance [15-21 Subaru WRX, STI] Rear Shock Tower Brace - Black Release Bearings If only the right sidePERRIN Rear Shock Tower Brace for 20152021 WRX STI is a chassis enhancing suspension component engineered to stiffen the rear shock mounting area on compatible Subaru WRX and STI models. Designed with precision and durability in mind, it ties the rear shock towers together to reduce flex and support more predictable handling. Improves chassis rigidity and helps reduce flex under load for more consistent cornering behavior Transfers loads between shock