Description
2015-18 Subaru STI Front & Rear Sway Bar Kit
Sway-A-Way’s 2015-2018 Subaru STI Front & Rear Sway Bar Kit is designed to replace both factory sway bars with adjustable larger diameter sway bars. Stock, the 2015+ Subaru STI kits come equipped with a 24mm front and 20mm rear sway bar. Sway-A-Way’s Front & Rear sway bar kit includes a 25.4mm front sway bar with 2 holes of adjustment and a 22mm or 24mm rear sway bar with 3 holes of adjustability. This complete sway bar kit provides a large increase in stiffness that will remove body roll for better overall handling and grip. Because of the larger relative stiffness increase in the rear sway bar, Sway-A-Way’s front and rear kit remove factory understeer giving the car a more neutral to oversteer feel. Please refer to the charts below for the relative stiffness increases.
Sway Bar Stiffness Increase Chart
Sway-A-Way 2015-18 Subaru STI Sway Bars Compared to Stock 24MM Front & 20MM Rear
| Sway Bar | Hole 1 | Hole 2 | Hole 3 |
|---|---|---|---|
| Front 25.4mm | +35% | +17% | – |
| Rear 22mm | +71% | +50% | +34% |
| Rear 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. This allows Sway-A-Way’s 2015+ SubarSTI front sway bar to retain access to motor mounts.
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 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.
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 Bars
CNC Bent – Forged Ends – Powder Coated
Front: 25.4MM
Rear: 22MM or 24MM
Adjustability
Front – 2-Holes:
Hole 1: +35% Stiffness
Hole 2: +17% Stiffness
Rear – 3-Holes:
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.
