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Their optimized weight ensures that they contribute to the overall performance of your vehicle without compromising on safety or stability
Mandrel-bent piping for unrestricted exhaust flow
engineered for durability and superior performance
Autoclave-cured for superior strength and finish
and enhances induction sound—all while maintaining OEM-level fit and finish
MMX Performance Ultimate Differential Track Pack - G8X M2 / M3 / M4 W463A 2025 Their optimized weight ensures thatThe MMX Performance Ultimate Differential Track Pack is engineered for G8X owners who push their cars hard on track and need reliability lap after lap. This kit addresses the three most common weak links in the G87 M2, G80 G81 M3, and G82 G83 M4 drivetrain: oil starvation, differential movement under load, and heat soak during extended sessions. By reinforcing the diff system from multiple angles, it ensures consistent performance even during long
