COBB Rear Diff To Subframe Mount Bushing Kit (CB-3201K) | Subaru WRX 2008-2021 / STI 2008-2021 / Forester XT 2009-2013 / Outback XT 2005-2009

The COBB Rear Diff to Subframe Mount Bushing Kit (CB-3201K) replaces the factory soft rubber bushings with firmer, performance-focused components that improve rear differential stability on Subaru WRX, STI, Forester XT, and Outback XT models. By reducing unwanted movement between the differential and subframe, this upgrade enhances throttle response, reduces drivetrain lash, and increases consistency under acceleration and cornering.

KEY FEATURES

• Replaces OEM bushings with high-durometer mounts for increased rigidity
• Minimizes differential movement for sharper power delivery and reduced lash
• Improves drivetrain stability during acceleration, braking, and high-load driving
• Reduces wheel hop and unwanted rear-end compliance
• Direct-fit installation using factory subframe mounting points
• Durable construction engineered for long-term heat and load resistance

TECHNICAL SPECIFICATIONS

• High-durometer bushing material designed to limit flex under load
• Precision-molded bushings shaped for correct alignment with OEM subframe mounts
• Enhances rear-end rigidity without introducing excessive NVH
• Compatible with factory and aftermarket rear differential housings
• Ideal for performance street builds or track-driven vehicles

VEHICLE FITMENT

• Subaru WRX 2008–2021
• Subaru STI 2008–2021
• Subaru Forester XT 2009–2013
• Subaru Outback XT 2005–2009

COBB delivers proven, data-driven performance solutions engineered to optimize your Subaru with unmatched precision and reliability.