KEIN Fab Rear Diff Mount Subaru WRX / STI 2002-2007

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  • $259.00
  • Regular price $329.00
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Kein rear diff support bar eliminates ALL movement of the rear differential. By bolting this unit onto the inside of the rear sub-frame, the brace will support the rear differential. Improvement will instantly be felt in acceleration, throttle response, and an improved control of the car when using the throttle to help rotation.

The Brace bolts onto existing factory holes, making this a quick and easy install. However, be warned that in-cabin drivetrain noise will increase slightly due to the nature of eliminating rubber OEM diff carriers.


  • Replace OEM parts № ST413104S020
  • Eliminates wheel hop/traction loss
  • Made out of steel K02001/ K02502
  • Street and track torture tested
  • Polymer painting (all colors)
  • 65A durometer rubber bushings
  • 5 years Warranty
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    PLEASE NOTE: ALL PARTS ARE SUBJECT TO AVAILABILITY unless stock level indicated on product page.