What makes Whiteline different from OEM suspension components?

Whiteline suspension products are engineered for performance and durability well beyond OEM standards. While factory (OEM) components often use soft rubber bushings that degrade over time and under load, Whiteline uses advanced polyurethane and bushing technology that resists oil, heat, abrasion, and weathering. This results in sharper handling, more responsive steering, better load control, and significantly improved lifespan — without the harshness of traditional solid bushings.

Do I need a wheel alignment after installing Whiteline components?

It’s recommended to perform a wheel alignment after installation to ensure optimal performance and tire wear.

Are Whiteline Fixed Offset Upper Control Arms (UCAs) necessary for lifted vehicles?

They help maintain correct alignment and steering geometry after a vehicle is lifted.

Can I install Whiteline products myself?

Some products are DIY-friendly, but professional installation is recommended for suspension components.

Do Whiteline products come with a warranty?

Yes. Please refer to our warranty policy for details.

BSR49Z

Rear Sway Bar - 20mm Heavy Duty Blade Adjustable Subaru Forester SH SJ & Impreza WRX & STI 2008-2018

Rear Sway Bar - 20mm Heavy Duty Blade Adjustable Subaru Forester SH SJ & Impreza WRX & STI 2008-2018

Includes KBR15 Sway Bar Mount Support Brace - 3 Point Adjustable Motorsport

Item Price

$324.88 $259.90

SKU	BSR49Z
Warranty	3 Years
Installation Time	1 Hour
Fitting Position	Rear

Select your car to check fitment.

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Pre-Order

Available for Preorder. PRE-ORDER - Ships within 4-6 weeks.

Description

Engineered to "Activate More Grip", sway bars are principally designed to reduce body roll or sway. By reducing body roll, lateral loads are spread more evenly across the tires thereby increasing cornering grip and improving outright performance. This Whiteline 20mm 3 point adjustable sway bar = more grip = better handling = outright performance - it's the best dollar for dollar handling improvement you can make to your vehicle. In fact, benefits extend to improvements in handling, safety and tire wear without affecting ride quality or comfort.

*Tax is calculated at checkout based on local regions tax laws. For international orders, tax is removed, local import duties or taxes may apply but will not be charged by us.

Specifications

Kit Specifications

Diameter (mm)	Diameter (in) Fraction	Diameter (in) Decimal	Material	Sway Bar Adjustment Type
20	51/64"	0.787	Solid Spring Steel	3 Point Adjustable

Diameter (mm)	20
Diameter (in) Fraction	51/64"
Diameter (in) Decimal	0.787
Material	Solid Spring Steel
Sway Bar Adjustment Type	3 Point Adjustable

Adjusting the sway bar's soft to hard setting will modify its torsion regidity, causing the sway bar to operate as per the size below.

Sway Bar Adjustment Settings

Setting	Effective Bar Size (mm)	% Change vs Previous Setting	% Stiffer Than OE
Soft - Comfort / low grip	19 mm	-	+24.1%
Medium - Balanced	20 mm	+22.8%	+52.4%
Hard - Maximum roll control	21 mm	+21.6%	+85.3%

Misc. Product Information

More Information
SKU	BSR49Z
Components Per	1 Sway Bar, 2 Bushings, 2 Braces, 2 Lateral Locks, 2 Bolts, 4 Washers
Kits Required	1
Kit Contents	1 Sway Bar, 2 Bushings, 2 Braces, 2 Lateral Locks, 2 Bolts, 4 Washers
Sub brand	Performance
Product Note	Improves stability and control, transforming vehicle performance the perfect, complete upgrade. Includes: 1 Sway Bar, 2 Bushings, 2 Braces, 2 Lateral Locks, 2 Bolts, 4 Washers
EAN	9319924358595

Installation & Fitment Guide

More Information
Install Guide	Downloads
Installation Time	1 Hour
Installation Difficulty	Tricky installation may take longer then you think if you are not experienced.
Wheel Alignment Required	No

Compatible Vehicles

Select any of the below vehicles to get detailed specifications on how this product interacts with your car. Including fitting positions, time and other vehicle specific information.

Shipping & Returns

Shipping Times

You can use the shipping calculator to find your shipping costs. The shipping calculator will also show all shipping prices.

Returns

We guarantee the fitment and quality of our products, but if you choose to return an item, we offer a generous 60 day returns policy. See our returns policy here.

Warranty

All products sold by Whiteline are covered by a national warranty. The product's warranty is subject to conditions from the date of purchase, unless otherwise stated on the item.

Warranty claims must meet certain criteria and be sent to Whiteline with a receipt to be eligible for a refund. See full warranty claim criteria here.