Lowering the ride height of your Subaru WRX and STI can be a very effective modification, enhancing handling by creating a lower vehicle center of gravity and giving the car an aggressive look by minimizing wheel gap. Unfortunately, once the stock ride height has been altered, the front end roll-center is modified as well, which can actually make your car handle worse than stock when carving out those deep corners. The suspension gurus at Whiteline have developed the perfect cure to this ailment, the Whiteline roll-center kit. The Whiteline roll-center kit, also called the ROCK kit, realigns the suspension geometry of your lowered Subaru, raising the front roll-center and creating a substantial increase in front roll resistance and a significant reduction in suspension compression on the outside of the front wheels during cornering. The Whiteline ROCK kit will improve front end weight distribution, maintain a better camber angle and ultimately improve front end grip. You will also experience a reduction in understeer as well as improved steering feel, precision and overall vehicle stability.
Another negative side effect of lowering your car can be the induction of bump-steer. Bump-steer is the concept of bumps or imperfections in the road causing a car to steer off-track on its own, without any driver input. This is described by many Subaru drivers as needing constant direction correction when steering over a bump. This annoying and sometimes even dangerous effect is the result of poor suspension geometry when a vehicle is lowered below factory specs. The Whiteline bump-steer correction kit extends the factory front end tie-rods to keep the axles at nearly the same distance from the frame at the steering box, eliminating axle tilt and subsequently curing bump-steer. Whiteline includes their bump-steer kit in every Subaru roll-center kit for the perfect total suspension solution. Your Subaru never felt this good!
I have Airlift on my 2019 STI. I was spectacle at first on these since they're advertised for subtle drops and lowering springs. But after installation the turning felt stock again. "Which is a win". Air, Coilovers, Springs. Get them. You wont regret it. Helped a lot with turn in and roll while driving on Trailed freeways.
My 2015 Impreza 2.0i is lowered a little over an inch, and I started getting bump steer wobble, and this kit tightened it right back up and noticeably tightened steering response.
Shipping was quick product wasn’t damage
The quality you expect with Whiteline products. Can’t say how they perform as I haven’t had time to install yet but if they work like all the past WL products I’ve ordered and used I have no doubt it will add to the ride quality of the car.
Product does what it is supposed to do. Seems higher quAlity then the oem parts