The Driveshaft Shop direct-fit rear axle for 2009–2018 Subaru STi is offered as a single interchangeable axle (left or right) rated for 800HP applications. Manufactured to replace the factory rear axle, this direct-fit unit restores drivetrain integrity for high-power setups and provides a straightforward replacement path for owners upgrading or repairing rear axle components.
DSS 09-18 Subaru STi Direct Fit 800HP Rear Axle (Single - Interchangeable L or R) RA8530X4-V2