Transmission gears play a critical role in how your Subaru delivers power and handles increased performance demands. IAG Performance carries transmission gears for WRX, STI, BRZ, Legacy GT, and Forester XT models, offering durable drivetrain components designed for street, drag racing, and track applications. Whether you're rebuilding a transmission or upgrading for additional strength, quality gears can help improve reliability and support higher horsepower levels. Featuring premium transmission gear options from Cusco for EJ25, FA20, and FA24 platforms.