These components replace the stock shifter mount and linkage bushings in 2004+ model year Subaru STi vehicles. While this product will not change the geometry of the shifting mechanism, it eliminates excessive play in the system for a more solid gear change. This product requires jacking of the car and jack stands are mandatory. Can be installed in 30 min. Material is grey (Front bushings only, rear is black), 95A durometer polyurethane. Rear shifter bushings for all AWD manual Transmissions. Made in USA.