Whiteline BSR49Z Rear 20 mm Heavy-Duty Blade-Adjustable Sway Bar for 2008-18

Vehicle Fitment

• 2008-2018 Subaru Forester SH & early SJ (incl. XT Turbo)
• 2008-2018 Subaru Impreza WRX (GV/GR chassis)
• 2008-2018 Subaru Impreza WRX STI (GV/GR chassis)
• 2010-2018 Subaru Legacy (BL/BP/BR; includes Outback / Liberty)

Features

• 20 mm rear heavy-duty solid-spring sway bar
• 3-point blade-style adjustable lever arms for tuning stiffness
• Heavy-duty synthetic elastomer bushings with MoS2 lubrication
• Includes reinforced support brace (KBR15) for mount rigidity
• Improves roll resistance, grip, and mid-corner stability
• Maintains ride quality while significantly reducing body roll
• Powder-coated finish for corrosion protection
• Backed by Whiteline 3-year / 60,000 mi (≈ 100,000 km) warranty

Specifications

• Position: Rear axle anti-roll bar (independent rear suspension platform)
• Bar diameter: 20 mm solid spring steel
• Adjustment: Three lever arm settings for fine-tuning roll stiffness
• Material: Solid steel bar; polyurethane bushings; steel hardware; support brace
• Quantity: 1 rear bar, 2 adjustable arm links, bushings, support brace, hardware
• Weight: approx. 6 kg total kit weight
• Installation time: ~1 hour (DIY-friendly)

Included Components

• 1x 20 mm rear sway bar assembly
• 2x adjustable blade-style lever arms with ball joints
• 2x polyurethane bushings
• KBR15 support brace for sway bar mount reinforcement
• Mounting hardware, U-bolts, washers, lateral locks
• Installation guide

Product Description

The **Whiteline BSR49Z** rear sway bar is a robust 20 mm blade-style adjustable anti-roll bar tailored for 2008-2018 Subaru Impreza WRX/STI, Forester SH/SJ, and Legacy/Outback models. Featuring three adjustable lever arms, the bar offers on-vehicle tuning for roll stiffness - allowing you to dial-in performance for cornering dynamics without sacrificing comfort. The included **KBR15 support brace** strengthens the rear sway bar mount, reducing flex and enhancing response.

Constructed from solid spring steel and finished with powder-coating, this bar is built to withstand harsh conditions. Synthetic elastomer bushings are internally lubricated with MoS2 for minimal friction and lasting quiet operation. Installation is straightforward, typically taking about an hour with basic tools.

Ideal for performance-oriented drivers seeking reduced rear body roll, sharper mid-corner grip, and greater chassis stability, the BSR49Z offers a significant upgrade over the OEM sway bar. It retains ride comfort while dramatically improving handling. Whiteline offers a **3-year / 60,000 mi warranty** on the sway bar and support components.:contentReference[oaicite:6]{index=6} Fitment beyond the specified model years remains unverified. No emissions statement required since this product does not affect emissions systems.