These are a set of Kartboy shifter bushings for the 04-07 STi.
The Kartboy Shifter Bushings replace the stock shifter mount bushings in the 2004 Subaru WRX STI. While this product will not change the geometry of the shifting mechanism, it eliminates excessive play in the system for a more solid gear changes. This simple modification will make your shifter linkage feel 10x more solid. This product requires jacking up the car and jack stands are required. Can be installed in 30 minutes. Material is Grey for the STi.