Cobb Front Sway Bar Endlink Set — 2015-2021 Subaru WRX / STI
The Cobb Heavy-Duty Front Sway Bar Endlink Set for the 2015-2021 Subaru WRX provides spherical rod end connections between the sway bar end and the suspension corner. Heavy-duty construction and spherical pivot design maintain consistent sway bar effectiveness through the suspension’s full range of motion.
DETAILS
- Platform: 2015-2021 Subaru WRX, 2015-2021 Subaru WRX STI
- Front sway bar end links — pair
- Spherical rod ends — low-friction, no rubber deflection
- Correct length for Cobb and compatible sway bar installations
- Heavy-duty construction for high-load performance driving applications
- All hardware included
Spherical Rod Ends vs Factory Rubber Ball-Joints
End links are the connecting rods between the sway bar end and the suspension strut or knuckle. They transmit the sway bar’s torsional resistance into the suspension corner during body roll — when a corner’s suspension compresses, the end link pulls the opposite end of the sway bar up, creating the torsional load that resists the roll. The end link geometry determines how effectively the sway bar can work through its full range of motion: an end link that is the wrong length, too flexible, or that allows binding in its pivot points reduces the sway bar’s effective stiffness and introduces unpredictable compliance into the connection.
Correct Geometry, Heavy-Duty Construction, and Installation
Cobb’s heavy-duty end links use spherical rod ends rather than the rubber ball-joints used in factory end links. Spherical rod ends provide a low-friction pivot that moves freely through the required range of motion without the deflection that rubber joints develop over time, particularly in high-load applications like performance driving where the sway bar is working at the limits of its load range. The correct length for the specific bar and suspension travel is engineered into the end link — it is not a universal unit that may or may not match the geometry correctly.
What’s in the Box
- Cobb front sway bar end links (pair)
- All hardware
Why Choose Cobb Tuning
Cobb Tuning has been developing performance software and hardware for turbocharged enthusiast vehicles since 1999. Founded in Austin, Texas, Cobb built its reputation on the Accessport and expanded into a full catalog of hardware engineered to complement it. Every OTS map is developed in-house on real vehicles, and every hardware product is validated as part of a complete system — not sourced and sold in isolation. That integrated approach is why Cobb produces consistent, reliable results across the builds we see every day.
The RallySport Take
The Cobb heavy-duty endlink set for the 2015-2021 Subaru WRX is the correct companion to a Cobb sway bar upgrade or a standalone replacement for worn factory end links. Factory rubber ball-joint end links degrade over time and under high loads — replacing them with Cobb’s spherical rod end units ensures the sway bar operates at its full designed stiffness consistently.
Fitment
| Year | Make | Model | Notes |
|---|---|---|---|
| 2015-2021 | Subaru | WRX | FA20DIT |
| 2015-2021 | Subaru | WRX STI | EJ257 |
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