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25mm Rear Sway Bar w/Stout Mounts for 2002-07 WRX


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Part Numbers
PSP-SUS-203 = 25mm with stout mounts

Was: $393.00
Sale: $353.70
Save: 10%
Save: $39.30


Subaru Rear Sway Bar Kit

Take your vehicles handling to the next level with PERRIN Performance sway bars. Upgrading your sway bar is the easiest way to improve vehicle handing. 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 sway bars incorporate multiple end link mounting holes which allow the installer to custom tailor your driving experience. This PERRIN sway bar increase stiffness by a minimum of 190% overstock. Adjusting the end link mounting position on this sway bar can increase that stiffness to as much at 515% over stock.


PERRIN sway bars are CNC precision bent from solid 4130 chromoly steel. The entire bar is heavily powder coated to fight corrosion and give it a great red finish. We laser cut and MIG weld our bar ends for precise placement and superior strength. This type of bar end will never fail and offer you a lifetime of superior handling.


All PERRIN sway bars include custom polyurethane bushings for a crisp response and better turn in. Special spiral cut pockets carved into the bushing surface extends the interval between re-greasing.

Stable Base for Your Stiffer Bar

PERRIN Stout Mounts are overbuilt to handle the added stiffness of upgraded sway bars. From auto cross to full rally, you will never have to worry about these failing!


A sway bar is an automobile suspension device. It connects opposite (left/right) wheels together through short lever arms linked by a torsion spring. A sway bar increases the suspension's roll stiffness—its resistance to roll in turns, independent of its spring rate in the vertical direction.
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5 Year Warranty

PERRIN Performance warrants to the original purchaser that all PERRIN products will be free from defects in material and workmanship within a sixty (60) month period from the date of purchase. *Some exclusions apply
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Warranty Details

This product features a 5 year warranty Read Full Warranty

Tech Department




1993-2007 Impreza & 2002-2007 WRX

PERRIN 25mm Bar Hole #1 395% Stiffer than 17mm OEM bar
PERRIN 25mm Bar Hole #2 515% Stiffer than 17mm OEM bar

Compatibility Detail


1993-2007 Impreza Yes, with (OEM RSB)
2002-2007 WRX Sedan & Wagon Yes

In The Box

In The Box

(1) PERRIN rear sway bar
(1) Set of PERRIN stout mounts
(2) PERRIN sway bar bushings & (1) Sway bar grease packet
Necessary Hardware
(1) PERRIN License Plate Frame


Shipping Information

  • Item Requires Shipping
  • 25.0 lbs.
  • W7.0000” x H10.0000” x L49.0000”
  • This item ships in its own box.