Subaru STi Sway Bar Endlinks - Front + Rear - Kartboy - KB Endlinks - '15-'21. These Kartboy endlinks are a direct-fit front and rear combo for 2015–2021 Subaru WRX & STi models designed to replace worn factory links and restore a firmer connection between swaybars and chassis.

Purpose-built for enthusiasts who demand consistent suspension response, the Kartboy KB endlink set reduces unwanted flex and re-establishes a more direct roll control characteristic. The combo includes both front and rear links for a complete refresh of the vehicle’s anti-roll linkage. Installation is straightforward for a mechanic or knowledgeable DIYer, and the adjustable design lets you fine-tune endlink length to match ride height or aftermarket swaybar geometry.

Features

• Fitment: Direct-fit for 2015–2021 Subaru WRX & STi (front and rear included).
• Adjustable length to accommodate lowered ride height and aftermarket components.
• Replaces factory endlinks to reduce play and improve steering/suspension feedback.
• Sold as a complete front and rear set for a balanced upgrade.

If you have questions about fitment, compatibility with aftermarket swaybars, or installation, call us directly — we’re happy to help. We offer installation and customization services at two locations: Austin, Texas and the Los Angeles, California area. For assistance call 512-982-9393 (TX) or 562-981-6800 (CA).

If you are considering purchasing multiple items, contact us for shipping discounts. We install on premises at both locations.

CA Residents: WARNING: Cancer and Reproductive Harm - www.P65Warnings.ca.gov