More Subaru STI 2004-2007 parts:All Subaru STI 2004-2007 parts Brakes Engine Tuning Exhaust Exterior Intake Interior Suspension Turbo Cooling Wheels Fuel Fluids Wheel Accessories WheelSpacers Electronics
Shop drivetrain parts for the Subaru WRX STI 2004–2007 (GD chassis). The GD STI runs the EJ257 2.5L turbocharged flat-four with Symmetrical All-Wheel Drive, a 6-speed manual as the sole transmission, a Driver Controlled Center Differential (DCCD) and front and rear limited-slip differentials. You will find clutches, flywheels, differentials, axles, drivetrain mounts here — every part in this collection is fitment-tagged for the 2004–2007 WRX STI, so check your year against the product fitment notes before ordering.
Every drivetrain part in this collection is fitment-tagged for the GD-chassis WRX STI (2004–2007), all of which use the 6-speed manual and DCCD all-wheel drive. Year matters inside the run: the DCCD torque split changed for 2006, and the 2007 car got a Torsen rear limited-slip differential in place of the previous clutch-type unit, so confirm your model year on the product page before ordering.
The DCCD is the STI's driver-controlled centre differential, working with front and rear limited-slip differentials. The torque split was described as 35/65 for 2005 and changed to 41/59 for 2006, when a mechanical limited-slip mechanism was added to supplement the electromagnetic DCCD — so centre-differential parts and settings are year-specific, and a 2004–2005 car is not set up identically to a 2006–2007 car.
Start with the full Subaru STI 2004-2007 collection linked at the top of this page, or jump straight to a category — Brakes, Engine, Tuning, Exhaust, Exterior, Intake and more are all linked above, and every one of them is scoped to the Subaru STI 2004-2007 only.