BLOX Racing Rear Sway Bar - 15-19 Subaru WRX/STI (24mm)
Fitment: 2008-2014 Subaru Impreza WRX / WRX STI applications for the 24mm adjustable rear sway bar. Manufacturer product title mentions 2008-2021 but exact vehicle-applications section lists WRX/STI only through 2014; contact manufacturer before applying to 2015-2021.