Whiteline 08+ Impreza / WRX / STi Rear Subframe Posi Traction Kit - KDT907

Whiteline Rear Subframe Positive Traction Kit — Subaru Impreza / WRX / STI (KDT907)

Replaces the soft factory bushings in the rear subframe to dramatically reduce rear crossmember misalignment and movement, giving a more positive feel from the rear end during cornering.

Why this matters more on an AWD car than most people expect. The factory subframe bushings are compliant by design — good for NVH, bad for keeping the rear geometry where you set it. Under power and cornering load the whole crossmember shifts, which means your alignment is only correct when the car is sitting still. Locking the subframe down is what makes an alignment stick and makes the rear predictable at the limit.

Built to survive underneath a car. Internal grease reservoirs provide continual self-lubrication for optimum friction management. Protective plating on all metal components acts as a hard skin much tougher than conventional paint, so it resists corrosion for years — which matters on a part living in the salt and spray.

Install guide included with detailed instructions.

Recommended for motorsport applications. Expect more road noise and vibration transmitted into the cabin. That's the trade for the precision, and it's a deliberate choice rather than a defect.

Fitment: 08-14 Subaru Impreza, WRX, and STI, plus Forester applications.

Do it while the subframe is out. This is not a job you want to do twice — if you're already dropping the rear for a differential, axles, or exhaust, that's the time.