Fitment Information

• Subaru WRX / WRX STI (008, 2009, 2010, 2011, 2012, 2013, 2014, 2015, 2016, 2017, 2018, 2019, 2020, 2021) 
• Subaru WRX STI Type RA Sedan (2018)
• Subaru WRX STI S209 Sedan (2019)

Specs & Features

• Complete Geometry Reset: Includes 2 Extended Ball Joints and 2 Tie Rod Ends to completely overhaul the front suspension points of your lowered vehicle.
• Fix the "Roll": Specifically designed to Raise the Front Roll-Center, which restores the suspension's ability to resist body roll without needing excessively stiff springs.
• Kill Bump Steer: Corrects the angle of the steering arms to improve Bump-Steer Geometry, stopping the steering wheel from jerking out of your hands when you hit a pothole.
• Steering Precision: Drastically improves Front Stability and turn-in response, making the car feel planted and predictable under hard cornering.
• The "Must-Have" Mod: The essential supporting modification for anyone running coilovers or lowering springs who wants to maintain proper chassis function.

Product Description

So, you slapped a set of coilovers or lowering springs on your car. It looks amazing and sits low, but does the steering feel a little... weird? Maybe it feels "darty" on the highway, or the steering wheel tugs when you hit a bump (that's called bump steer). Here is the hard truth: when you lower a MacPherson strut car, you ruin the factory suspension geometry. The control arms angle upwards, pushing the "Roll Center" deep underground. This actually makes the car want to roll more, forcing you to run super stiff springs to compensate.

This Roll Center Adjustment Kit is the missing link in your suspension setup. By using Extended Ball Joints, we physically push the control arm back down to a parallel position, raising the roll center back where it belongs. This creates a longer "moment arm," meaning the suspension naturally resists body roll again. You get a car that corners flatter and feels more planted, without ruining the ride quality.

We also include replacement Tie Rod Ends designed to correct the angle of your steering rods. When your tie rods are at a steep angle, the wheels actually steer themselves every time the suspension compresses (bump steer). This kit flattens that angle out, ensuring that when you point the wheel straight, the car goes straight, no matter how bumpy the road is.

Suspension tuning isn't just about going lower; it's about keeping the geometry happy. This kit is widely regarded as one of the most effective handling upgrades you can buy for a modified car. It brings the "precision" back to your steering and ensures your tires are working with the road, not fighting against it. If you are lowered, you need this.