Perrin Rear Adjustable Sway Bar 25mm 2008-2021 WRX / 2008-2021 STI / 2017-2021 BRZ

Here, you are looking at the Perrin 25mm Adjustable rear sway bar for your WRX, STi, BRZ, or 86!

Take your vehicle's handling to the next level with PERRIN Performance sway bars. Upgrading your sway bar is the easiest way to improve vehicle handling. Sway bars increase roll resistance and modify vehicle balance. In general, adding a larger rear sway bar increases over steer, and adding a larger front sway bar increases under steer. Upgrade both front and rear sway bars to reduce body roll and tune vehicle balance to your preference.

PERRIN Performance Rear Sway Bars are adjustable with three end link mounting holes, this allows adjustment to the stiffness of the bar.  PERRIN Performance Rear Sway Bars are available in four sizes, 16mm, 19mm, 22mm, and 25mm. The thicker the bar the stiffer it is and the larger effect it'll have on your vehicle's handling.

Finished in a glossy red powder-coated finish for long-lasting good looks.

2008 WRX:

• PERRIN 25mm Bar Hole #1 550% Stiffer than 15mm OEM bar
• PERRIN 25mm Bar Hole #2 720% Stiffer than 15mm OEM bar
• PERRIN 25mm Bar Hole #3 900% Stiffer than 15mm OEM bar

2009-2014 WRX / STI: 

• PERRIN 25mm Bar Hole #1 400% Stiffer than 16mm OEM bar
• PERRIN 25mm Bar Hole #2 530% Stiffer than 16mm OEM bar
• PERRIN 25mm Bar Hole #3 720% Stiffer than 16mm OEM bar 

2015-2017 WRX / STI:

• PERRIN 25mm Bar Hole #1 105% Stiffer than 20mm OEM bar
• PERRIN 25mm Bar Hole #2 160% Stiffer than 20mm OEM bar
• PERRIN 25mm Bar Hole #3 240% Stiffer than 20mm OEM bar 

2018-2021 WRX / STI:

• PERRIN 25mm Bar Hole #1 150% Stiffer than 19mm OEM bar
• PERRIN 25mm Bar Hole #2 210% Stiffer than 19mm OEM bar
• PERRIN 25mm Bar Hole #3 300% Stiffer than 19mm OEM bar

2017-2021 BRZ / 86: 

• PERRIN 25mm Bar Hole #1 550% Stiffer than 15mm OEM Bar
• PERRIN 25mm Bar Hole #2 720% Stiffer than 15mm OEM Bar
• PERRIN 25mm Bar Hole #3 900% Stiffer than 15mm OEM Bar