SKU: BCB-013RZ-24 | UPC: 700424680900
Cobb Subaru 08-21 WRX/STI Adjustable Rear Sway Bar – 24mm
The Cobb Adjustable Rear Sway Bar (24mm) bolts directly onto 2008-2021 Subaru WRX and STI models, replacing the factory bar with a thicker, tunable design. This upgrade stiffens the rear suspension to balance chassis roll and sharpen turn-in response during aggressive driving. Drivers gain immediate feedback and control for autocross, track days, or spirited roads.
Key Features
- 24mm Hollow Chromoly Steel Bar: Delivers 200%+ stiffness increase over stock 16mm bar for flatter cornering and reduced understeer.
- 3-Way Adjustability: Three settings via splined ends and locking rings allow precise rear roll tuning without bar removal stock-like, medium, or maximum stiffness.
- Greasable Polyurethane Bushings: Zinc-plated steel sleeves and heavy-duty bushings with zerk fittings ensure smooth operation and long life under high loads.
- Complete Bolt-On Kit: Includes custom brackets, hardware, and bushings for straightforward installation no fabrication needed.
- Black Powder Coat Finish: Resists corrosion and chipping for lasting appearance on daily-driven or race cars.
Product Notes
- Pair with front sway bar for fully balanced handling; works with stock or aftermarket coilovers.
- Grease bushings during install and every 5,000 miles for optimal performance.
- Boxed for protection measures 41″ x 6″ x 6″ with 16.8 lb shipping weight.
Installation Notes
- Professional installation recommended.
- Estimated 1-2 hours with basic tools jack up rear and remove stock bar/end links first.
- Reuses OEM end links torque bushings to 18-22 ft-lbs and perform wheel alignment after.
This Part Fits
| Year | Make | Model | Submodel |
|---|---|---|---|
| 2008-2021 | Subaru | Impreza WRX STI | All |
| 2008-2014 | Subaru | Impreza WRX | Base, Limited, Premium |
| 2015-2021 | Subaru | WRX | Base, Limited, Premium |
Why Choose Cobb?
- Subaru specialists with decades of rally and track engineering experience.
- U.S.-made components tested on real-world Subaru chassis for reliability.
- Direct bolt-on design from factory CAD data ensures perfect fit and function.
Frequently Asked Questions
- Q: Will this fit my 2017 STI hatchback?
A: Yes, direct fit for all 2008-2021 STI sedans and hatches using OEM mounting points. - Q: What material is the bar made from?
A: Seamless 4130 chromoly steel tubing with 3mm wall thickness for strength without excess weight. - Q: What warranty coverage?
A: Backed by Cobb’s 1-year limited warranty against defects in materials and workmanship.
Shipping & Handling
- Method: UPS Ground or FedEx Ground
- Availability: In stock – ships same or next business day
- Packaging: Protective cardboard tube 41 x 6 x 6 inches
- Weight: 16.8 lbs
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