Driveshaft Shop Driveshafts

The best Driveshaft Shop upgrade for your Subaru depends on your power goal. DSS rates its axles by horsepower handling, with 600HP direct bolt-in rear axles for the FR-S and BRZ, 750hp and 800hp CV axle upgrades for STI applications, and Level 0 basic replacement axles for stock-power daily drivers. For weight savings, the 1-piece carbon fiber driveshafts reduce rotating mass over the factory shaft.

The Driveshaft Shop specializes in driveline parts for performance cars, and this collection covers its carbon fiber driveshafts, high-horsepower CV axle upgrades, and stock-replacement axles. Its axle lines are built in stages so you can buy at or above your power level instead of replacing stock axles repeatedly as power climbs. Related upgrades live in our driveshafts and axles collections, plus fitment-specific ranges like the 2008-2014 STI drivetrain and 2004-2007 STI drivetrain collections.

Popular picks include the DSS 1-piece carbon fiber driveshaft for the 2015-2021 STI, the 600HP direct bolt-in rear axles for the FR-S and BRZ, the 750hp front CV axle upgrade for the 2005-2007 STI, and the 800hp rear CV axle upgrade for the 2004-2007 STI. For more on what carbon fiber brings to a build, see How Carbon Fiber Car Parts Can Improve Performance.

Do I need upgraded axles at my power level?

Choose axles rated at or above your target wheel horsepower, since stock axles and CV joints are common failure points on high-power launches. If you are still stock, the Level 0 replacement axles are the sensible pick.

Are DSS axles and driveshafts bolt-on?

Yes, DSS designs these as direct bolt-in replacements for the listed fitments, with no fabrication needed. Always check your year and model against the listing before ordering.

Will a 1-piece carbon driveshaft change cabin noise?

It can change cabin NVH slightly compared with the factory shaft, since a single-piece carbon design transmits driveline harmonics differently. Most drivers find the difference subtle on the street.

Does an upgraded driveshaft or axle set need a tune?

No. Driveshaft and axle changes are purely mechanical and do not alter the engine map, so no tune is required after installation.