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COBB Subaru Rear Differential Subframe Mount Bushing Insert 2008-2021 WRX / 2008-2021 STI

SKU CB-4297K
Save $3.64 Save $3.64
Original price $35.00
Original price $35.00 - Original price $35.00
Original price $35.00
Current price $31.36
$31.36 - $31.36
Current price $31.36

Rear Differential – Subframe Mount Insert/Supplement uses specially formulated Polyurethane which allows mounting of the rear diff securely and safely. These mount bushings will reduce the amount of torque twist which enables the vehicle to get the power down quicker all without the noise and vibration associated with harder mounts.

Less flex with minimal NVH added. The Rear Differential – Subframe Mount Insert/Supplement is the perfect mounting solution for your Subaru's rear differential to the subframe.

  • Enhances your vehicle's handling and performance
  • Unaffected by extreme temperatures, oils, water or coolant
  • Proprietary polyurethane formula bushings that are a quieter, longer lasting, and higher quality alternative to rubber
  • 94a durometer bushings

Customer Reviews

Based on 3 reviews
Jon Christopher
Feels awesome

Can really feel the difference when you let out the clutch this is how these cars should feel from the factory


I installed these on my 14 WRX and I couldn't agree with you more! The COBB Subaru Rear Diff Subframe Mount bushings make an unbelievable difference and absolutely should have come this way from the factory! They are simple to install too!


Steven Barwis
Rear differential bushing insert

Products great noticed a really big difference when letting the clutch out seems a lot more stable. Would highly recommend


Thank you for the 5 Star Review! The COBB Rear Diff Subframe bushings hugely reduce the amount of flex and movement under acceleration! In doing so this puts more power to the ground faster!


Conrad Dunfee
Difficult to install, but great value for the price

Once you start thinking about this upgrade, start doing finger strengthening exercises. Rear of the car definitely feels better


Thank you for sharing your experience with the COBB Subaru Rear Differential Subframe Mount Bushing Insert. It is good to know that this upgrade, while a bit challenging to install, has improved the feel of the rear of your car. Strengthening exercises for the fingers can be a handy preparation for such tasks, haha! Enjoy the enhanced performance and handling!


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