SuperPro HD Sway Bar End Link Kit – 2015–2021 Subaru WRX (VA) | TRC1225 HD End Links + SPF3915K Polyurethane Bushings | Complete Set

Eliminate sway bar end link deflection and improve roll stiffness response on your 2015–2021 Subaru WRX (VA) with the SuperPro HD End Link Kit — a complete set combining SuperPro's TRC1225 heavy-duty end links with SPF3915K polyurethane end link bushings. The factory WRX end links use rubber bushings that deflect under lateral load — allowing the sway bar to move before it engages and reducing the effective roll stiffness of the bar. The SuperPro HD kit replaces both the end link hardware and the bushings with heavy-duty components that eliminate this compliance, ensuring the sway bar engages immediately and consistently under cornering loads for sharper, more predictable handling.

Kit Contents

• TRC1225: SuperPro heavy-duty end link set (hardware)
• SPF3915K: SuperPro polyurethane end link bushings

Key Features

• Eliminates End Link Deflection – Immediate Sway Bar Engagement: Factory rubber end link bushings deflect under lateral cornering loads — the rubber compresses and allows the end link to move before the sway bar is fully engaged, effectively reducing the bar’s roll stiffness contribution. SuperPro polyurethane bushings (SPF3915K) are significantly stiffer than rubber, eliminating this deflection and ensuring the sway bar engages immediately and consistently under cornering loads
• Heavy-Duty End Link Hardware (TRC1225): TRC1225 heavy-duty end links replace the factory end link hardware with more robust components engineered for the increased loads of performance street and track use — more resistant to bending and fatigue than factory end links under sustained lateral cornering loads
• SuperPro Polyurethane Bushings (SPF3915K): SuperPro’s polyurethane bushings offer a significant stiffness advantage over factory rubber while retaining enough compliance to avoid the harshness and noise associated with solid metal rod end links — a well-balanced choice for performance street and track use where improved handling response is the priority without sacrificing daily drivability
• Complete Kit – Hardware & Bushings Included: TRC1225 end links and SPF3915K polyurethane bushings included as a matched set — everything required for a complete end link upgrade in one kit
• 2015–2021 Subaru WRX VA – Direct Fit: Engineered for direct fitment on the 2015–2021 Subaru WRX (VA chassis, FA20DIT and EJ257). Verify your specific model year before ordering
• SuperPro Quality: Manufactured by SuperPro — a respected suspension specialist known for high-quality polyurethane bushings and suspension components for performance and 4WD applications

Specifications

• Kit Contents: TRC1225 HD End Links + SPF3915K Polyurethane Bushings (Complete Set)
• Bushing Material: SuperPro Polyurethane
• Fitment: 2015–2021 Subaru WRX VA (FA20DIT / EJ257)
• Part Number: TRCLNKSET15 (TRC1225 + SPF3915K)
• UPC: 9317745077459

Note: Wheel alignment check recommended after installation. Polyurethane bushings may require periodic lubrication with SuperPro-compatible grease to prevent squeaking — use only SuperPro-recommended lubricant. Professional installation recommended. Verify fitment for your specific WRX model year and variant before ordering.