Fix your VB WRX's factory understeer and unlock predictable, flat cornering. While the VB chassis is structurally stiffer than previous generations, Subaru equipped it with a modest 19mm rear sway bar. When you push the car into a hard corner, the factory rear bar lets the back end roll and lag behind the front tires, creating annoying push (understeer) and preventing the car from rotating cleanly. The SMY Performance Stealth 24mm Solid Rear Sway Bar completely re-writes your car's handling dynamics. By swapping the soft factory bar for a massive, high-tensile solid steel upgrade, you'll enjoy a car that rotates effortlessly, stays flat through high-speed sweeps, and puts power down with precision.
Features:
- Up to 124% Stiffer Than OEM: Hollow factory bars flex under load, but this solid, mandrel-bent steel bar resists twisting with absolute authority. It offers three distinct adjustability holes to completely dial in your rear-end rotation:
1- Furthest Hole: +86% stiffer than stock (Perfect for a sharper, more controlled daily street setup).
2- Middle Hole: +105% stiffer than stock (The sweet spot for aggressive canyon runs and spirited driving).
3- Closest Hole: +124% stiffer than stock (Maximum roll control, ideal for dialing out understeer on track or autocross days).
- Integrated Lateral Lock Collars: Cheaper sway bars slide horizontally through their bushings during heavy cornering, which delays suspension response. The SMY Stealth bar features built-in stop collars welded right to the bar, keeping it perfectly centered and instantly engaged the moment you turn the wheel.
- Squeak-Free Grease-Zerk Brackets: The top complaint about aftermarket polyurethane bushings is the dreaded dry-bushing squeak. SMY eliminates this headache by pairing premium polyurethane bushings with heavy-duty brackets that feature integrated grease ports and protective caps. You can refresh your grease in seconds using a standard grease gun without taking anything apart.
- The Stealth Factor: Part of SMY's signature "Stealth Line," this bar is finished in a durable, road-resistant satin black powder coat. It offers maximum protection against moisture, salt, and debris while maintaining an understated, factory-plus look underneath your chassis.
- Color = Power coated Stealth Black
Specs & Perforamance Metrics:
| Part & Location: |
Factory Rear OEM Bar |
SMY Stealth Rear Bar |
| Bar Diameter: |
19mm |
24mm |
| Construction: |
Standard Steel |
Solid / Mandrel-Bent High-Tensile Steel |
| Adjustability: |
Fixed (1 Setting) |
3-Point Adjustable |
| Stiffness Increase: |
Baseline |
+86% (Outer Hole) / +105% (Center Hole) / +124% (Inner Hole) |
| Bushing Type: |
Soft Rubber |
Premium Rubber |
| Maintenance: |
Sealed (Non-Serviceable) |
Heavy-Duty Brackets w/ Integrated Grease Ports |
| Warranty: |
Limited Factory |
Lifetime Warranty |
Includes:
- (1) SMY Stealth 24mm Solid Rear Sway Bar
- (2) Premium Rubber Bushings
- (2) Upgraded Heavy-Duty Brackets with Integrated Grease Zerk Ports
- All Necessary Installation Hardware
Driver's Note: To get the absolute most out of this 26mm upgrade, we highly recommend pairing this bar with a set of heavy-duty adjustable front endlinks. Keeping the bar perfectly preloaded ensures instantaneous suspension articulation the second you turn the wheel.
Installation:
- Endlink to Swaybar bolt = 44 Foot-lbs
- Sway Bar Bracket Mounts = 33 Foot-lbs
- Control Arm to Endlink Bolt = 34 Foot/lbs
- After Fully Installed, you Must Add Grease. Grease must be added after every track event or during maintenance approximately every other season.The best Grease we have found is the REDLINE CV2 Red Grease.
- TO PROPERLY TORQUE DOWN SUSPENSION THE PARTS MUST BE UNDER FULL LOAD, NOT SUSPENDED IN THE AIR
Application:
2022-2026 Subaru WRX
