BLOX Racing Pitch Stop Brace 2015-2021 Subaru WRX / STiBLOX Racing 15 21 Subaru WRX STi Pitch Stop Brace BLOX Racing's Pitch Stop Brace is CNC machined from billet aluminum and designed to reinforce the OEM's mounting brackets. 2015+WRX and STi, unfortunately, are notorious for being designed with weak and thin brackets. Because of Subaru's design flaw, engine movement or pitch from normal driving, placed too much stress on these points that they bent or tore. BLOX Racing's Pitch Stop Brace reinforces