Perrin Shifter Adapter: The Perrin short shift adapter allows you to convert your existing stock 08-09 WRX shift lever and mechanism into an adjustable short throw unit.
The throw can be adjusted from stock to a variety of custom shift throw lengths. By retaining the stock lever, the comfortable feel of an OEM shifter is retained.
NOTE: This part does not fit WRXs equipped with the factory short throw shifter. Impreza 2002+ (not-compatible with factory short shifter) WRX 2002+ (not-compatible with factory short shifter)