Keeping the differential securely mounted is important for maintaining consistent drivetrain performance. Designed for Subaru WRX, STI, BRZ, Legacy GT, and Forester XT applications, differential braces help reduce differential movement during acceleration, shifting, and spirited driving. IAG Performance offers durable differential reinforcement solutions from Kartboy to help improve drivetrain control and long-term reliability on EJ25, FA20, and FA24 platforms.