Whiteline BSF48Z 26 mm Adjustable Front Sway Bar for 2015-2021 Subaru WRX STI

Vehicle Fitment

• 2015-2021 Subaru WRX STI (VA chassis, front axle)

Fitment Notes

• Front anti-roll bar (sway bar) replacement/upgrade
• Direct fit for listed Subaru WRX STI models
• Includes sway bar and matched polyurethane bushings
• Wheel alignment recommended after installation

Features

• Heavy-duty 26 mm (approx. 1.0 in) diameter solid steel front sway bar
• 2-point adjustable mounting holes allow tuning of roll stiffness
• Reduces body roll and enhances cornering grip and balance
• Improves handling precision without compromising daily comfort
• Includes durable polyurethane sway bar bushings
• Powder-coated finish resists corrosion for long life
• Optimizes lateral load transfer for improved tyre contact
• Performance tuning upgrade that complements springs and dampers

Specifications

• Part Number: BSF48Z
• Application: Front sway bar for Subaru WRX STI
• Diameter: 26 mm solid steel
• Adjustability: 2-point adjustable lever arms
• Mounting Position: Front axle
• Material: High-strength steel
• Bushings: Polyurethane (included)
• Finish: Powder coat
• Weight: ~12.8 lbs
• Warranty: Whiteline 3-year limited warranty

Included Components

• 1x Front sway bar (26 mm adjustable)
• 2x Polyurethane sway bar bushings

Product Description

The Whiteline BSF48Z front sway bar is a performance-grade anti-roll bar designed specifically for **2015-2021 Subaru WRX STI** vehicles to reduce body lean and enhance cornering performance. Built from solid high-strength steel and featuring a 26 mm diameter, this adjustable front bar increases roll stiffness relative to the stock unit, helping spread lateral loads more evenly across the tyres for improved grip and handling balance through turns. The included polyurethane bushings provide durable, low-friction mounting that supports both spirited driving and daily use.

Featuring 2-point adjustable mounting locations, the BSF48Z allows enthusiasts to fine-tune roll resistance to match their driving style or suspension setup. Whether you're looking for sharper turn-in response or greater resistance to body roll on sweepers, this sway bar delivers an effective performance upgrade. The powder-coated finish enhances corrosion resistance, and the kit is backed by Whiteline's 3-year limited warranty for confidence-inspiring reliability.