The Kartboy Rear Subframe Outrigger Race 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.