Whiteline GS1-SUB011 Grip Series Stage 1 Coil Spring & Sway Bar Kit

The Whiteline GS1-SUB011 Grip Series Stage 1 Kit is a complete entry-level performance suspension upgrade combining lowering springs, adjustable front and rear sway bars, and upgraded drop links into one comprehensive package. Engineered specifically for the VB-chassis Subaru WRX, this kit delivers a meaningful improvement in handling balance, body roll control, and cornering confidence without sacrificing ride quality or daily drivability.

At the core of the kit are Whiteline's performance lowering springs, which lower the vehicle approximately 25mm (1 inch) front and rear. The front springs are rated at 4.5 kg/mm (253 lb/in) and the rears at 5.4 kg/mm (300 lb/in), lowering the center of gravity for improved cornering dynamics and a more aggressive stance. The progressive rate coil design maintains safety and ride quality characteristics throughout the spring travel.

The kit also includes a 24mm 2-point adjustable front sway bar and a 22mm 3-point adjustable rear sway bar, giving drivers the ability to fine-tune chassis balance to suit their driving style. Heavy-duty adjustable sway bar links front and rear complete the package, ensuring optimal geometry and ease of installation.

Kit Includes:

• Whiteline performance lowering springs — front and rear (WSK-SUB009)
• 24mm 2-point adjustable front sway bar (BSF51Z)
• 22mm 3-point adjustable rear sway bar (BSR57Z)
• Heavy-duty adjustable front sway bar link assembly (KLC175)
• Heavy-duty adjustable rear sway bar link assembly (KLC182)
• All mounting hardware and installation guide

Key Benefits:

• Reduces body roll and improves cornering grip
• Corrects factory understeer for a more balanced, neutral handling feel
• Lowers center of gravity with a 25mm drop front and rear
• Adjustable sway bars allow tuning for street or spirited driving use
• No compromise to ride quality, NVH, or everyday comfort
• Improves steering response, braking stability, and tire wear

The GS1-SUB011 combines sub-components WSK-SUB009 and BSK025 into a single, cohesive kit designed to work as a system. Whether used as a standalone upgrade or as the foundation of a broader suspension build, this Grip Series Stage 1 kit is the ideal starting point for activating more grip from the VB Subaru WRX platform.