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Sway Bar Kit – 15-18 Subaru STI

High-performance sway bar kit, includes a 25.4mm front 2 hole adjustable sway bar and your choice diameter rear 3 hole adjustable sway bar. Designed for the 15-18 Subaru STI, our rear sway bar is available in 22mm and 24mm. Includes polyurethane bushings and bushing grease.

SKU: 1914 Categories: ,
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$349.00

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 BarHole 1Hole 2Hole 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.

Endlinks
Front 2015-2018 Subaru WRX/STI Endlinks

Rear 2008-2018 Subaru WRX/STI/BRZ Endlinks

Additional information

Fitment

15-17 Subaru WRX/STI

Position

Front & Rear

Front Diameter

25.4mm

Rear Diameter

22mm, 24mm

Front - Hole 1:

+35% Stiffer than 24mm OEM bar

Front - Hole 2:

+17% Stiffer than 24mm OEM bar

22mm Rear - Hole 1:

+71% Stiffer than 20mm OEM bar

22mm Rear - Hole 2:

+50% Stiffer than 20mm OEM bar

22mm Rear - Hole 3:

+34% Stiffer than 20mm OEM bar

24mm Rear - Hole 1:

+126% Stiffer than 20mm OEM bar

24mm Rear - Hole 2:

+99% Stiffer than 20mm OEM bar

24mm Rear - Hole 3:

+77% Stiffer than 20mm OEM bar

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