Whiteline BSR36Z 22mm Adj Rear Sway Bar for 2003-2007 Subaru Impreza WRX STI

Vehicle Fitment

• 2003-2007 Subaru Impreza (GD Sedan / GG Wagon, AWD, 2.0L EJ20 H4 - Base / RS)
• 2003-2007 Subaru Impreza WRX (GD Sedan / GG Wagon, AWD, 2.0L EJ205 Turbo H4)
• 2004-2007 Subaru Impreza WRX STI (GD Sedan / GG Wagon, AWD, 2.5L EJ257 Turbo H4)
• 2004-2006 Saab 9-2X (GD-based platform, AWD, 2.0L / 2.5L H4)

Fitment Notes

• Fits all GD/GG Impreza variants including Base, RS, WRX, and STI - sedan and wagon body styles
• Designed for vehicles with OEM sway bar mounting; 22mm suits MY03-07 models with factory rear sway bar
• No wheel alignment required after installation
• End links not included; sold separately
• Estimated installation time 1 hour

Features

• 3-point adjustable design provides soft, medium, and hard stiffness settings to tune rear roll stiffness for street, canyon, or track use
• Solid spring steel construction delivers significantly greater torsional rigidity than the OE bar at all three settings
• Forged blade ends provide maximum strength and durability at the end link mounting points under sustained lateral cornering loads
• Synthetic elastomer mount bushings with internal bore knurling and grease retention lips for long-term lubrication and minimal NVH
• Reduces rear body roll to spread cornering loads more evenly across the rear tires, improving grip and balance
• Improves steering response and reduces understeer by increasing rear roll stiffness relative to factory calibration
• Compatible with OEM and aftermarket sway bar end links for installation flexibility
• Silver powder coat finish resists corrosion and physical wear in demanding driving environments

Specifications

• Fitting Position: Rear
• Diameter: 22mm (7/8 in)
• Material: Solid Spring Steel
• Adjustment Type: 3-Point (Soft / Medium / Hard)
• Soft Setting Effective Bar Size: 21mm (+21.6% stiffer than OE)
• Medium Setting Effective Bar Size: 22mm (+46.4% stiffer than OE)
• Hard Setting Effective Bar Size: 23mm (+74.9% stiffer than OE)
• Finish: Silver Powder Coat
• Wheel Alignment Required: No
• Warranty: 3 Years

Included Components

• 1x Rear Sway Bar (22mm)
• 2x Synthetic Elastomer Mount Bushings
• 1x Installation Guide

Product Description

The Whiteline BSR36Z is a 22mm 3-point adjustable rear sway bar engineered for the 2003-2007 Subaru Impreza GD/GG platform, covering all variants from the base Impreza through the WRX and WRX STI. The factory rear sway bar on these cars is conservatively sized, allowing the rear suspension to roll more than necessary under cornering and contributing to understeer at the limit. The BSR36Z addresses this with a solid spring steel bar available in three effective stiffness settings - 21mm (soft), 22mm (medium), and 23mm (hard) - ranging from 21.6% to 74.9% stiffer than OE.

The 3-point adjustment allows drivers to dial in rear roll stiffness without removing the bar, making it easy to find the right balance between everyday compliance and track-focused control. The soft setting suits street driving where ride comfort is a priority, while medium and hard progressively sharpen rear stability and turn-in response. Forged blade ends and synthetic elastomer bushings with knurled bores and grease retention lips ensure durable, rattle-free performance over time. End links are sold separately, and no wheel alignment is required after installation.