Karbonius G8X M2 / M3 / M4 Carbon Front Strut BraceWhile the F8X M3 and M4 received a huge carbon fiber strut brace that was not only incredibly strong, tying the front strut towers to the front core support, but incredibly beautiful as well. Unfortunately, though it was also an extremely functional piece, working with the space and cost constraints, BMW utilized a stamped steel 2 piece strut brace package for G8X cars. Karbonius has taken it upon themselves to fully redesign the G8x factory front