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!
Any returns for an exchange or refund will be allowed within 30 days from the receipt of your order and must be authorized prior to shipping with an RMA Number (Return Merchandise Authorization). To receive your return instructions and RMA# please use our online form under Returns and Exchanges! Once you receive your return instructions please ship out the item at your earliest convenience and provide the tracking number to your customer service rep. The customer will be responsible for all shipping fees. Before shipping your product back please make sure you package it up exactly how you received it and in all of its original packaging. All items must be in brand new and resalable condition. Once the item is received it will be inspected and a credit will be issued accordingly. All returns are subject to a 15% restocking fee. Any returns received without an RMA# will be charged a restocking fee and any shipping fees associated with the return. An item that does not ship directly from IIR's warehouse is considered a "special order" item and no returns will be authorized.
they do exactly what they are supposed to do. clears up old sloppy bushings, and helps correct steering geometry for lowered vehicles (reasonably lowered, not slammed vehicles)
The point with mods were I’ve done almost everything in my car. Just looking to refine things a bit. This helps with at limit handling in the front to maintain suspension geometry and reduce Understeer. Install was fairly easy after reviewing several YouTube videos. I’d recommend getting a pickle fork set and a ball joint separator tool. And a decent 3 pound sledge. Along with basic mechanic tools including torque wrench. Mark your tire rod end retaining nuts before removal and plan to get an alignment immediately after. I was able to drive the car to the alignment shop.
This is becoming my favorite site for building my dad-mobile
The tie rods and ball joints are hands down a must for anyone looking for better steering.
Put the ball joints on new control arms and put on the outer tie rods and got an alignment and it is solid now.
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