Tanabe Performance Suspension & Exhaust Parts

The best strut tower bars for a 15-21 WRX or STI are rigid, bolt-on braces designed for that chassis — the Tanabe Sustec front strut tower bar (TTB188F) in this collection is built specifically for the 15-21 WRX/STI and installs with hand tools in an afternoon.

A strut tower bar ties the two front (or rear) strut towers together so the chassis flexes less in corners, which sharpens turn-in and makes the steering feel more direct. It is one of the simplest chassis mods: most bars bolt to the existing strut-tower studs with no drilling, and stack well with sway bars and coilovers later. Look for bars designed for your specific chassis, and check your year and model — strut-tower spacing changes between generations.

Tanabe is a Japanese suspension and chassis brand, and the Sustec strut tower bars in this collection are its flagship bolt-on bracing. The lineup covers the 15-21 WRX/STI (TTB188F), 08-14 WRX/STI, Scion FR-S, BRZ, and 2013-2015 Civic Si sedan, with front and rear bars for several chassis. Tanabe's reputation rests on application-specific engineering: each bar is designed for the strut-tower layout of the car it fits rather than being a universal piece bent to fit many cars.

The collection also carries the Revel GT Design kick panel covers for the 16-19 WRX/STI — Revel is Tanabe's sister brand for interior dress-up.

Cusco is another Japanese chassis specialist and the natural companion brand to Tanabe here. Cusco is known for strut bars, sway bars, and power braces engineered specifically for Subaru chassis, with deep bracing catalogs that complement a Tanabe bar.

Whiteline approaches chassis tuning from the Australian handling scene, with sway bars, bushings, and bracing designed around making street cars sharper without punishing ride comfort. Its sway bars are the classic next step after a strut bar: the bar ties the towers together while sway bars control body roll.

Shop the full range of strut bars and the broader suspension catalog, including the Tanabe TTB188F for the 15-21 WRX/STI and the Tanabe front strut bar for the FR-S and BRZ. Read our guide on how aftermarket parts improve your vehicle's handling.

Frequently Asked Questions

Will a Tanabe strut bar fit my car?

Each bar lists the exact chassis and years it was designed for — 15-21 WRX/STI, 08-14 WRX/STI, FR-S, BRZ, and the 2013-2015 Civic Si sedan. Check your year and model against the product page before ordering.

How difficult is the install?

Most bars are a simple bolt-on: remove the strut-tower nuts, drop the bar over the studs, and torque them down — about an hour with basic hand tools.

Do I need an alignment or tune after installing a strut bar?

Neither — a strut bar changes no suspension adjustment and touches no engine or electronic components.

Front or rear bar — which should I get first?

Most start with the front bar, where the steering improvement is most noticeable, then add the rear bar later.