When the differential shifts under acceleration or cornering, it can lead to inconsistent power delivery and reduced traction. Designed for Subaru WRX, STI, BRZ, Legacy GT, and Forester XT applications, differential bushings help stabilize the drivetrain by reducing unwanted movement in the rear subframe and mounting points. IAG Performance offers a wide selection of differential bushing kits for EJ25, FA20, and FA24 platforms from Kartboy, SuperPro, and Whiteline.