Whiteline Front Roll Center Adjustment Kit - Subaru Models (inc. 2002+ WRX/STI)
Manufacturer Part # KCA313
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Whenever you lower your vehicle, it is wise to get a quality Front Roll Center Adjustment Kit, like the one from Whiteline. This particular roll center kit consists of 2 steering arm tie rod ends, 2 ball joints, and it will help correct your suspension geometry by raising the front roll-center geometry after you have lowered your vehicle. This will help improve on the original bump-steer geometry as well for improved handling and to make the most out of the rest of the suspension on your vehicle.
How this works is that the Whiteline ball joints are physically longer when compared to the OEM units. Once installed into the control arm, it will push the control arm down to keep the factory suspension geometry settings as close to OEM as possible. Additionally, the tie rod ends included in this kit are taller when compared to the OEM units and will come with heavy-duty boot covers for heat resistance near the brake rotors.
Whiteline supplies new castle nuts and new pins to make the Front Roll Center Kit ready for the installation.
RallySport Guarantee - 30 Days
Items that are covered under the RallySport Guarantee offer a 30 day no questions asked return policy.
RallySport Guarantee items may be returned within 30 days of the original invoice date and must include all the original parts and contents for a refund.
The RallySport Guarantee does not apply to products that have been modified, damaged, misused or abused. All returns require an RMA (Return Merchandise Authorization) Number, and freight charges are strictly non-refundable. For more information regarding our freight refund policy, please refer to our return policy page found HERE.
Why no new steel inserts?
joe 2 months ago
I got this because car is lowered and i needed to replace ball joints anyways. Install was straightforward...but why doesn't it come with new steel inserts? Everybody says they have trouble getting the ball joints out (mine popped right out, but we had the hardest time getting the inserts off to swap over.
If you've lowered your car, pick these up.
BananaSammiches 6 months ago
Everything the description says about this product is true. I bought this kit for my 2006 WRX wagon equipped with ISC N1 street sport coilovers, and even though I only dropped my car about an inch or so, it made a noticeable difference in overall driveability versus the OEM tie rod ends and ball joints. Install was very straightforward, I did it in my driveway with my car on jack stands. However, just know that if you have an older WRX this will be a very tedious install. After so many years the ball joints will become seized into the hubs and lower control arms and are difficult to remove. I had to completely take my LCAs off in order to knock the old joints out. All in all, I am happy with this purchase, and the performance so far is definitely worth the time and effort. If you're upgrading your suspension, don't overlook this kit.
White line roll center kit
Phantom Pearl 9 months ago
I bought this product because I was having interference from my sway links and my tie rods. Not knowing that it would be better than I expected. Between the roll center kit and the Perrin end links, the whole dynamic of my car changed. I thank whiteline for putting out such a quality Product definitely will be leaning on their brand more often.
Questions & Answers
Can you run these at stock height? Might throw these on a week before my coilovers as my ball joints are bad.
My car is sitting on rce yellow springs which is right at a 1 inch drop. Will I need to correct my steering geometry or is it fine with the mild drop?
Jonathan @ Whiteline
Hello! I have a 2001 H.6 Bean outback and was thinking if these here could fit with the set up I have. I recently purchased after market aluminium control arms that are about an inch longer than the OEM steel control arms recently fitted on until I bent the steel OEM control arms sliding into a curb. Last week I went to have my car aligned after putting the aluminum control arms on and the mechanics said that I in order to have a "correct" or "good" alignment I would need either longer tie rods with more threads, or I would need to not use the after market control arms I just invested in and just use the OEM steel control arms! Now I do not want to purchase a new set of control arms. I would love to be able to use these aluminum control arms with my car some how!!!! Would these help me out with the making the geometry of the suspension be "safe" or "correct" with the current aluminium control arms? Are these the same length as the OEM counter parts or longer? If these are not longer or if these to not have more threads than the OEM counter parts could you direct me to parts that do, please? Thank you for the help! I appreciate the time.
Jonathan @ Whiteline