Description
2015-18 Subaru WRX/STI Rear Sway Bar
Sway-A-Way’s 2015-2018 Subaru WRX / STI rear sway bar is designed to replace the factory sway bar with an adjustable larger diameter sway bar. Stock, the 2015+ Subaru WRX & STI both come equipped with a 20mm rear sway bar. Sway-A-Way offers a 22mm and 24mm replacement each with three holes of adjustment. Please refer to the table below for stiffness increases over the factory bar. Both sway bars offer a sizable increase in stiffness resulting in less body roll for better overall handling. These larger sway bars will remove understeer giving the car a more neutral to oversteer feel.
Sway Bar Stiffness Increase Chart
Sway-A-Way 2015-18 Subaru WRX/STI Rear Sway Bars Compared to Stock 20mm
| Sway Bar | Hole 1 | Hole 2 | Hole 3 |
|---|---|---|---|
| 22mm | +71% | +50% | +34% |
| 24mm | +126% | +99% | +77% |
CNC Bent to Factory Profile
Sway-A-Way uses in-house 3D scanning equipment and a CNC bender to precisely match the factory sway bar profile.
Precision Forged Ends
Through processes mastered over the last 30+ years, Sway-A-Way uses induction heating, presses, CNC plasma cutting, and custom tooling to craft forged ends. This combination of CNC bending and forged ends results in a sway bar that is both strong, accurate and ready for the track.
Bushing Collars
Sway-A-Way’s 2015-2017 Subaru WRX/STI Rear Sway Bar uses welded on bushing collars to prevent lateral sway bar movement, keeping the sway bar centered.
Powder Coated for Corrosion Resistance
Sway-A-Way sway bars all receive a red powder coat for lasting corrosion resistance.
Polyurethane Bushings & Grease
Included with every sway bar are two polyurethane bushings cast specifically for the stock bushing bracket and Energy Suspension Formula 5 Polyurethane Grease. These bushings & grease are sourced directly from Energy Suspension, the leader in performance polyurethane products.
Pair this rear sway bar with the Sway-A-Way front sway bar in our 2015-2018 Subaru WRX/STI Front & Rear Sway Bar Kit. This kit reduces front and rear body roll, improves overall handling and grip, and removes factory understeer.
Sway-A-Way designs and manufacturers all Subaru sway bars in its Chatsworth, CA facility. Sway-A-Way’s Subaru sway bars are warrantied from defects in material and workmanship under normal use and service for a period of (2) two years from the date of sale to the original purchaser. Please review our complete warranty agreement.
Tech Specs
Sway Bar
22mm/24mm – CNC Bent – Forged Ends – Welded Collars – Powder Coated
Adjustability
3 Hole:
22mm:
Hole 1: +71% Stiffness
Hole 2: +50% Stiffness
Hole 3: +34% Stiffness
24mm
Hole 1: +126% Stiffness
Hole 2: +99% Stiffness
Hole 3: +77% Stiffness
Powder Coat
Red Powder Coat
Bushings
Polyurethane Bushings – Fits stock bushing bracket.
Grease
Energy Suspension – Formula 5 Pre-lube
The best grease on the market for polyurethane bushings.
