Perrin PSP-SUS-245 16mm 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

• 16mm is the mildest size in Perrin's rear sway bar lineup - ideal for street driving and daily drivers seeking improved handling with minimal compromise in ride quality.
• For WRX/STI, Perrin recommends pairing with a 19mm-22mm front sway bar for a balanced street/track setup; larger 22mm or 25mm rear bars are available for more aggressive applications.
• For BRZ/FR-S/86/GR86, 16mm is the recommended starting point - 18mm and 22mm are available for more aggressive setups. Note: 25mm does NOT fit BRZ/FR-S/86/GR86.
• Estimated install time: approximately 30 minutes.
• Also available in 18mm (PSP-SUS-246), 22mm (PSP-SUS-247), 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 mild street to more aggressive 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 improved cornering grip

Specifications

• Part Number: PSP-SUS-245
• Diameter: 16mm
• 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: N/A (16mm mild), see BRZ/86 specs below
• Stiffness vs. OEM (BRZ/FR-S 14mm OEM) - Hole #1: +30%, Hole #2: +65%, Hole #3: +116%
• Stiffness vs. OEM (2017-2020 BRZ/86 15mm OEM) - Hole #1: -9%, Hole #2: +25%, Hole #3: +60%
• Stiffness vs. OEM (2022+ BRZ/GR86 14mm OEM) - Hole #1: +30%, Hole #2: +65%, Hole #3: +116%
• Estimated Install Time: ~30 minutes
• Warranty: 5-year Perrin limited warranty
• Brand: Perrin Performance

Included Components

• 1x Perrin 16mm 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-245 is a 16mm solid 4130 chromoly steel rear adjustable sway bar for a wide range of Subaru and Toyota performance platforms, including the 2008-2021 WRX and STI, 2013-2026 BRZ, Scion FR-S, Toyota 86/GT86, and GR86. At 16mm, it is the mildest option in Perrin's four-size rear sway bar lineup - designed for street-oriented enthusiasts who want a noticeable improvement in cornering response and reduced body roll without significantly compromising daily driveability. Three end link mounting holes allow stiffness to be fine-tuned from hole to hole, providing flexibility as other suspension components are added to the build.

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. Centering rings keep the bar properly positioned in hard cornering, and the included polyurethane bushings with spiral-cut grease pockets deliver a crisp, responsive feel over the factory rubber. Install takes approximately 30 minutes. Also available in 18mm (PSP-SUS-246), 22mm (PSP-SUS-247), and 25mm (PSP-SUS-248). Backed by Perrin's 5-year limited warranty.