Eibach Anti-Roll 25mm Front Sway Bar | 2015-2019 Subaru STI (7728.310)2015+ Subaru STI Anti Roll Front Sway Bar by Eibach Complete your suspension upgrade with an Eibach ANTI ROLL KIT. While our PRO KIT and SPORTLINE spring sets are regarded as the primary suspension enhancement components, the Eibach ANTI ROLL KIT allows critical fine tuning of your cars handling characteristics. Our ANTI ROLL KITs reduce body roll through increased design stiffness over stock bars. The result: increased handling and cornering grip in