FITMENTS:
  • 2002-2005 WRX
  • 2006-2007 WRX
  • 2004-2007 STi


  • Brand: Kartboy
  • Manufacturer's Part Number: KB-003DIFF-S
  • Primary Material: 95A durometer polyurethane

  • Decrease the movement of the rear diff during hard shifts or cornering
  • Easy install with simple hand tools (NO press needed)
  • Stiffer urethane bushings used throughout

    Manufacturer's Description:
    The Kartboy Rear Subframe Outrigger bushings are designed to eliminate the hard clunk you experience when shifting hard and fast in your Subaru. Often called rear diff bushings these parts actually sandwich above and below the forward outriggers for the rear subframe. Please note, that there will be an increase in NVH with these, but they do help considerably with eliminating the clunk from the rear end and tightening up the feel of the rear of the car. Please note, this is the race stiffness so these will create more NVH than the comfort versions