Hardrace Pillow Ball Rear Upper Arm Bushing Fits Most Subaru Models SALE_2019Forester While the intake works with

While the intake works with a stock tune

Its aggressive design also adds a striking visual upgrade to your WRX’s rear profile

Ports: Two -6AN inlet ports

The Circuit II QRT includes integrated head bolsters to protect the head and deep side bolster for maximum lateral containment

Hardrace Pillow Ball Rear Upper Arm Bushing Fits Most Subaru Models SALE_2019Forester While the intake works withHardrace Pillow Ball Rear Upper Arm Bushing Fits Most Subaru Models Precision Control Suspension Upgrade Overview The Hardrace Pillow Ball Rear Upper Arm Bushing is designed to enhance suspension performance across a wide range of Subaru models, including WRX, STI, Legacy, Impreza, Crosstrek, Outback, BRZ, and GR86. This upgrade replaces the factory rubber bushings with a precision engineered pillow ball design, delivering improved driver feedback,