Cusco 2023+ Toyota GR Corolla Rear Upper Control Arm (Knuckle Side) Pillowball Bushing Set

If you're looking to dial in the suspension on your 2023+ Toyota GR Corolla, especially for track days or spirited driving, upgrading the rear upper control arm bushings is a smart move. These Cusco pillowball bushings replace the stock rubber components on the knuckle side, offering a more direct connection between the suspension and the chassis. This change can make a notable difference in how your car handles, particularly during cornering and under braking.

Cusco is well-known for its performance suspension parts, and this set is built with that reputation in mind. The pillowball bearings themselves are designed for minimal deflection, meaning that when you turn the steering wheel or apply the brakes, the suspension geometry stays more consistent. This translates to improved feedback from the rear end and a more predictable feel when you're pushing the car. The set includes the necessary bushings to replace the factory ones on the knuckle side of the rear upper control arms.

Upgrading to pillowball bushings is a common modification for performance-oriented vehicles like the GR Corolla. While they offer a significant improvement in handling precision, it's worth noting that they can introduce a bit more road noise and vibration into the cabin compared to stock rubber bushings. For drivers prioritizing track performance and precise control, this trade-off is usually well worth it.