
Super Pro Rear Control Arm Kit
Subaru Models (inc. 2008+ WRX/STI)
Features & Product Details
RallySport Direct proudly carries a great selection of performance and chassis enhancements brought to you by Super Pro.
Here, you are looking at the Super Pro Rear Control Arm Kit. These control arms have an adjustment range in both toe and camber to allow the driver to set up the alignment specs to their driving style.
DETAILS:
Specifications
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REVIEWS & CUSTOMER MEDIA

These are an easy install. The major hurdle is the toe arms which can be a bit tricky until you move the trailing arm out from underneath it. Also, as previously mentioned, the hub side on the lower control arm is larger than it needs to be for a VA chassis (my car is a 2019) which needs to be spaced with washers to correctly seat. My only concern is that the camber adjustment on the lower control arm is a pivot which works great, but also cuts through the paint right down to the bare metal. I'm not concerned about this living in SWFL, however in a northern climate after the first alignment you're playing a waiting game to see how long until they rust.
A simple but effective way of correcting rear camber. Certainly strong enough and well priced. Used in conjunction to an upgrade to Bilatein coil overs ✅
MY16 Sti - Needing control of the rear camber you have to buy adjustable arms such as these AND you’d be crazy not to buy this kit with adjustable rear toe arms also. Doing one and not the other is foolishness. Install was surprisingly easy for the toe arms. Both the RCA’s were approx 2-3mm wider hub end - than the stock units. We used three large washers - two one side and one the other before tightening. We thought rather not bend it in with tightening and rather not have them moving around at all. Not a big issue but I was surprised... Super-pro quality and value for money is unbeatable. These are strong, finely adjustable, and do the job well.
The kit is complete with all the parts that you need and the instructions are clear. Only downside is that the toe arms do not have a provision for attaching the e-brake cable as the stock ones do. You have to figure out a way to do this on your own. I was able to fabricate the correct tab and TIG weld it in place. This is the only reason it gets 3 stars as far as ease of install and value goes.
First I'd like to give a shoutout to the crew at rallysportdirect.com for their dedication to the sport. You guys ROCK! Super Pro Rear Control Arm Kit: If you are looking to get your rear suspension dialed in, I'd highly recommend this product. The build quality, strength, adjustability, looks, and ease of installation are on point! I would opt for the kit with toe adjustment.(Part #SPP TRC0015) Whether you're trying to be king of the streets or take seconds off your lap time, the Super Pro Kit will help you get there.
QUESTIONS & ANSWERS
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Q: SuperPro rear toe arms WRX 2015+ Peter3 years ago
Do these rear toe arms include something to delete or restrict the OE adjustment? Are their special washers to lock-out the OE slotted holes in the subframe?
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A: All the factory hardware is used except for the fasteners on t he outer hub.
Lane H. @ RallySport Direct 2 years ago
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Q: Bushing Size Subi 3 years ago
Can an oem bushings be pressed/fitted in place of the super pro bushing in the control arm? I’d rather put my group N STi bushing into the control are vice the super pro one, but can’t tell if it’s the same size.
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A: yeah these should use the OEM size bushings. thanks.
Rick C. @ RallySport Direct 3 years ago -
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A: I just installed these and OEM size bushings do not fit. The opening is larger than the factory.
Subi @
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Q: Super pro rear control arm for 19sti dirtysock114 years ago
Can u get -3 camber on them ?? R -2.5 on this control arm ??
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A: This lower control arm allows up to 2 degrees, to get more than that adjustable top hats would be recommended.
Michael N.
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Q: Super Pro Rear Control Arms Kit! CIO7 years ago
Does all the bushings and hardware to install is included in this kit or will I have to purchase the Whitline Rear Arms Bushings Kit?
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A: This will have all the necessary parts needed to install these control arms.
Chris W. @ RallySport Direct 7 years ago
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