This component replaces the stock shift lever in 2004-2009 model year Subaru STI's. The kartboy replacement lever for the Subaru WRX STi 6 Speed is the first non-Subaru version available. With a height reduction of 1" and a redesigned mechanical advantage, a throw reduction of 40% is achieved. Constructed of CNC'd and TIG welded 4130 Cr-Mo steel. Installs with simple mechanic's tools in under 30 minutes. Matched with a set of kartboy shifter bushings (optional), a major improvement in the shifting is immediately felt, while retaining the factory reverse lock-out. Made in USA.