GTSPEC Fender Reinforcement Brace For 2003+ Mazda RX8 (4-Points). When combined with the 6-points front strut brace, your total reinforcement points is 10, which is the most reinforcement available in the market for the RX8 front chassis. Fender braces also help to reinforce the structure of the upper shock mount. It greatly reduces the twisting of the chassis under heavy cornering and braking loads. You will feel a more direct and linear steering response!