R Theory Motorsports Universal Sway Bar Adjuster (SBA) - Patent Pending
Fine-tune your handling without breaking the bank.
Car enthusiasts have always faced the same problem: if you want sharper handling, you’re stuck buying stiffer springs, new sway bars, or other costly suspension parts. Even worse, on many cars, just swapping a sway bar can mean dropping the subframe and spending hours under the car. The SBA changes all of that.
The Universal Sway Bar Adjuster (SBA) is a first-of-its-kind solution that lets you adjust your sway bar stiffness in minutes! No expensive parts, no endless labor, no compromises.
Why it matters:
- Make your car handle better instantly - Add effective spring rate to your sway bar setup, whether it’s OEM or aftermarket.
- Skip the hassle of sway bar swaps - Perfect for cars where removing the subframe just to swap bars isn’t worth the effort.
- Adjust to your driving needs - Stiffen the rear bar for quicker rotation through corners, or stiffen the front bar for added stability.
- Dial in more compliance - Loosen the sway bar when you need comfort or better traction on rough surfaces.
Built for enthusiasts:
- Installs in just 30-60 minutes on most cars.
- Compatible with almost any vehicle, OEM or modified.
- Made from stainless steel with grade 10.9 zinc-coated hardware, reliable for both track and year-round street use.
The SBA isn’t just another part, it’s the missing link between affordability and true suspension tuning. Whether it’s your first mod or the finishing touch to a fully built setup, the SBA gives you the freedom to fine-tune your car’s balance exactly how you want it.
Models available:
- SBA-10: For sway bars with a 10mm endlink bolt.
- SBA-12: For sway bars with a 12mm endlink bolt.
- SBA-U: Universal kit with spacers for both 10mm and 12mm setups.
Prices include shipping within the USA and Canada. International shipping calculated at checkout.
Take control of your suspension. Fine-tune your handling. Drive your car the way it was meant to be driven.
Read more about it here in our blog post!
Install Instructions are here!
1 Review Hide Reviews Show Reviews
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Work excellent a year later, 14 track days so far...
I am using this sway bar adjuster on my 2016 Miata. My sway bar setup is Eibach front sway bar set to stiff, and rear OEM bar set to one notch stiffer than the factory location. The handling balance with my 9kg front and 5kg rear coilovers is perfect. The brackets are solid, no creaks and they are easy to install. You can use OEM sway bar end links and manimulate the angle of the adjuster to remove any sway bar preload like you would with adjustable sway bar end links.
