Performance V1 Carbon Fiber Strut Brace Replacement Set - G80 M3 | G82 / G83 M4The carbon fiber strut brace on the F8X M3 and M4 was a standout feature of the S55 engine bay, offering both visual appeal and lightweight performance. On the latest M3 and M4 generation, this component was replaced with a standard aluminum brace, which led us to develop the Performance V1 prepreg carbon strut brace replacement kit. The Performance V1 kit includes two replacement brace sections, constructed from genuine 2x2 prepreg carbon fiber for