2013-2020 BRZ / GR86 Sway Bars

Sway bars (anti-roll bars) are the best handling value on a 2013-2020 BRZ / GR86. They reduce body roll in corners without changing ride height or spring rates, which means your daily ride comfort stays essentially untouched while cornering flattens out noticeably. For a street car, they are often a smarter first suspension mod than coilovers.

Front versus rear matters for balance. A stiffer rear bar reduces understeer and makes the car rotate more willingly — the classic BRZ / GR86 improvement. A stiffer front bar adds stability but increases understeer. Most drivers start with the rear bar, then add the front if they want a more neutral balance. Adjustable bars with multiple end-link holes let you fine-tune stiffness without buying another bar.

Diameter is not the whole story — the bar's material, solid versus hollow construction, and mounting hardware all affect effective rate. Hollow bars save weight with similar stiffness. Make sure the kit includes upgraded bushings and brackets; the factory mounts can flex or fail with a much stiffer bar.

Pair sway bars with quality end links to remove slop from the factory links. Filter by front/rear position and adjustability to dial in your 2013-2020 BRZ / GR86.