Perrin PSP-SUS-247 22mm Rear Sway Bar Red 2008-2021 WRX STI BRZ 86 GR86 FR-S

Vehicle Fitment

• 2008-2021 Subaru WRX (EJ20/FA20DIT H4 Turbocharged, AWD)
• 2008-2021 Subaru WRX STI (EJ257 H4 Turbocharged, AWD)
• 2013-2026 Subaru BRZ (FA20/FA24 H4, RWD)
• 2013-2016 Scion FR-S (FA20 H4, RWD)
• 2017-2026 Toyota 86 / GT86 / GR86 (FA20/FA24 H4, RWD)
• 2009-2021 Subaru Forester (multiple engine variants)
• 2010-2024 Subaru Legacy (multiple engine variants)
• 2013-2024 Subaru Crosstrek (multiple engine variants)

Fitment Notes

• 22mm is the third and most popular size in Perrin's rear sway bar lineup - ideal for track days, autocross, and aggressive street use where maximum cornering performance is the priority.
• For WRX/STI, Perrin recommends pairing with a 22mm-25mm front sway bar for a balanced, track-focused setup. The 22mm rear delivers 40-140% more stiffness over the OEM 19mm bar depending on hole selection.
• For BRZ/FR-S/86/GR86, the 22mm is the largest compatible size - it provides 400-729% more stiffness over the 14mm OEM bar (2013-2016 / 2022+) and 280-390% over the 15mm OEM (2017-2020).
• The 25mm bar does NOT fit BRZ/FR-S/86/GR86 - 22mm is the maximum size for those platforms.
• Estimated install time: approximately 30 minutes.
• Also available in 16mm (PSP-SUS-245), 18mm (PSP-SUS-246), and 25mm (PSP-SUS-248).

Features

• CNC precision bent from solid 4130 chromoly steel for maximum strength and long-term durability
• Laser cut and MIG welded bar ends for precise placement and superior strength - designed to last a lifetime
• 3-hole adjustable end link mounting points allow fine-tuning of roll stiffness from firm street to full track setups
• Centering rings prevent sway bar lateral movement during hard cornering - keeps the bar properly positioned at all times
• Included custom polyurethane bushings deliver crisp response and improved turn-in over OEM rubber
• Spiral-cut pockets in bushing surface extend re-greasing intervals
• Heavy red powder coat finish provides long-term corrosion protection
• Reduces body roll and evenly distributes lateral tire loads for maximized cornering grip

Specifications

• Part Number: PSP-SUS-247
• Diameter: 22mm
• Position: Rear
• Material: Solid 4130 chromoly steel
• Finish: Red powder coat
• Adjustability: 3-hole end link mounting
• Stiffness vs. OEM (WRX/STI 19mm OEM) - Hole #1: +40%, Hole #2: +85%, Hole #3: +140%
• Stiffness vs. OEM (BRZ/FR-S 14mm OEM) - Hole #1: +400%, Hole #2: +535%, Hole #3: +729%
• Stiffness vs. OEM (2017-2020 BRZ/86 15mm OEM) - Hole #1: +280%, Hole #2: +380%, Hole #3: +390%
• Stiffness vs. OEM (2022+ BRZ/GR86 14mm OEM) - Hole #1: +400%, Hole #2: +535%, Hole #3: +729%
• Estimated Install Time: ~30 minutes
• Warranty: 5-year Perrin limited warranty
• Brand: Perrin Performance

Included Components

• 1x Perrin 22mm Rear Sway Bar - Red
• 2x OEM-size polyurethane rear sway bar bushings
• 1x Grease packet
• 1x Perrin license plate frame
• 1x Warranty card and installation instructions

Product Description

The Perrin PSP-SUS-247 is a 22mm solid 4130 chromoly steel rear adjustable sway bar for the 2008-2021 Subaru WRX and STI, 2013-2026 BRZ, Scion FR-S, Toyota 86/GT86, GR86, and other compatible Subaru platforms. At 22mm, it is the most popular size in Perrin's rear sway bar lineup for performance-focused builds - delivering 40-140% more stiffness over the OEM WRX/STI bar and up to 729% more stiffness over the BRZ/FR-S OEM bar at the stiffest hole position. It is the go-to choice for track days, autocross, and enthusiastic street use where minimizing body roll and maximizing cornering grip are the primary goals.

Each bar is CNC precision bent, laser cut, and MIG welded for precise fitment and lifetime durability, finished in a heavy red powder coat for corrosion resistance. Note: for BRZ/FR-S/86/GR86, the 22mm is the largest available option - the 25mm does not fit those platforms. Install takes approximately 30 minutes. Also available in 16mm (PSP-SUS-245), 18mm (PSP-SUS-246), and 25mm (PSP-SUS-248). Backed by Perrin's 5-year limited warranty.