COBB Rear Sway Bar Mount Reinforcement Kit
The COBB Rear Sway Bar Mount Reinforcement Kit, part CB-1005, is a powder-coated chassis brace for the 2008-2021 Subaru WRX and STI, reinforcing the rear sway bar bushing mount against chassis flex.
Key Features
- Powder-coated steel brace reinforces the factory rear sway bar mount
- Reduces chassis flex at the rear sway bar bushing mount under hard cornering
- Mounts between the lower sway bar bushing tab and the rear inner control arm bolts
- Direct bolt-on installation using factory mounting points
- Part CB-1005 fits Subaru WRX and STI model years 2008 through 2021
- Complements COBB’s rear lower control arm and bushing upgrades
Fitment
| Year | Make | Model | Submodel |
|---|---|---|---|
| 2008-2021 | Subaru | WRX | |
| 2008-2021 | Subaru | STI |
Specifications
| Detail | Value |
|---|---|
| COBB Part Number | CB-1005 |
| Finish | Powder coated |
| Fitment | 2008-2021 Subaru WRX / STI |
What’s Included
- COBB CB-1005 reinforcement brace(s)
- Mounting hardware
About COBB Tuning
COBB Tuning has engineered performance electronics, intakes, exhausts and suspension components for turbocharged platforms since 2003, building its Accessport ECU flashing device alongside record-tested bolt-on hardware for Subaru, Ford, Honda, Toyota and more.
FAQ
What vehicles does this fit?
It fits the 2008-2021 Subaru WRX and STI.
What does this kit reinforce?
It reinforces the rear sway bar bushing mount against chassis flex.
Where does this mount?
It mounts between the lower sway bar bushing tab and the rear inner lower control arm bolts.
Is this a bolt-on installation?
Yes, it uses factory mounting points and bolts.
What finish does this have?
It has a powder-coated finish.
Do I need an alignment after installing this?
This is a chassis brace, not a suspension geometry change, so an alignment is not required specifically for this part.
Is a warranty included?
Yes, it is covered by COBB’s Component Limited Warranty against manufacturing defects.
Can I pair this with COBB’s rear control arms?
Yes, it complements COBB’s rear lower control arm and bushing upgrades.
Installation Instructions
- Raise and support the rear of the vehicle, then remove the rear wheels for access
- Locate the rear sway bar bushing mount and adjacent rear lower control arm bolts
- Loosen the rear inner lower control arm bolts on the affected side
- Position the COBB CB-1005 brace between the sway bar mount tab and the control arm bolt location
- Reinstall and torque the control arm bolts through the brace to the factory specification
- Repeat on the opposite side and verify both braces are secure before lowering the vehicle
Prop 65 Warning
WARNING: California residents can view COBB’s Proposition 65 warning notice on the product listing page for specific chemical exposure information.
