Blox Racing Pitch Stop Brace - 15-21 Subaru WRX / STI - BXSS-50100Blox Racings Pitch Stop Brace is CNC machined from billet aluminum and designed to reinforce the OEMs mounting brackets. 2015+WRX and STi, unfortunately, are notorious for being designed with weak and thin brackets. Because of Subarus design flaw, engine movement or pitch from normal driving, placed too much stress on these points that they bent or tore. Blox Racings Pitch Stop Brace reinforces these points helping to greatly reduce the amount of flex