The Driveshaft Shop direct bolt-in rear axle is specified for 2004–2007 Subaru WRX STI applications and is labeled for 800HP capability as part of the product identity. Offered as a direct-replacement rear axle (RA8528X4-V2), this axle is intended for bolt-in swap into the listed WRX STI models and supplies a higher-capacity rear axle option where an 800HP-rated component is required by the installer.
DSS 04-07 Subaru WRX STi Direct Bolt-In 800HP Rear Axle RA8528X4-V2