6-Speed Manual Transmission Swap Package

The STI TY856WB1CA is a comprehensive 6-speed manual transmission swap package engineered to provide a significant performance upgrade for 2002-2007 Subaru WRX and 2003-2008 Forester models. This JDM-spec transmission features a non-DCCD (Driver Control Centre Differential) configuration and utilizes an A.P. Suretrac front limited-slip differential, which improves cornering stability and front-wheel traction during acceleration. The package is designed to handle increased horsepower and torque loads compared to factory 5-speed or automatic transmissions. This turn-key solution includes a wide array of matching components to ensure a cohesive build. Key inclusions are the R180 plated rear differential, a factory 6-speed driveshaft, Brembo brake calipers for all four corners, 5x100 hubs, axles, and front and rear subframes. The integration of these components provides a complete drivetrain and handling enhancement that is well-suited for street, track, and rally applications. Designed for models with a 5x100 bolt pattern, this transmission swap allows for precise gear changes through the included factory 6-speed shifter linkage. As a high-performance JDM component, it is inspected for reliability and is intended to be a robust replacement for aging or underpowered stock transmissions. Installers should note that this package is a complete assembly and is intended for use in the specified Subaru chassis applications to ensure proper drivetrain alignment and functionality.