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Stop Rear Sway Bar Slop on Your WRX Before It Gets Worse
Worn rear sway bar mount bushings let the bar shift under load, softening the WRX's cornering response and introducing clunks over bumps. The SuperPro SPF3108-22K replaces the factory rubber rear sway bar mount bushings with 22mm polyurethane bushings engineered to bolt into the factory mounts, restoring precise sway bar control.
Key Features
- Replaces worn rear sway bar mount bushings with 22mm polyurethane bushings
- SPF3108-22K bolts directly into factory mounting hardware, no modification needed
- Improves rear-end handling response and stability under cornering load
- Eliminates clunking noise caused by a loose rear sway bar
- Polyurethane resists the compression set and cracking common to OEM rubber bushings
Fitment
| Year Range | Make | Model | Trim |
|---|---|---|---|
| 2015-2021 | Subaru | WRX | Limited |
Specifications
| Detail | Value |
|---|---|
| MPN | SPF3108-22K |
| Brand | SuperPro |
| Position | Rear sway bar mount |
| Bar Diameter | 22mm |
| Material | Polyurethane |
| Warranty | Lifetime warranty on SuperPro polyurethane bushings |
| UPC | Not published by manufacturer |
What's Included
- Rear sway bar mount bushing set, 22mm
About SuperPro
SuperPro has engineered performance polyurethane suspension bushings in Australia for over 40 years, building sway bar mount bushings that bolt into factory locations to restore the precise handling the WRX platform is built for.
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FAQ
What is the SPF3108-22K?The SPF3108-22K is a SuperPro polyurethane bushing set that replaces the rear sway bar mount bushings on the 2015-2021 Subaru WRX Limited.
What size sway bar does this bushing kit fit?This kit is designed for a 22mm diameter rear sway bar.
What are the signs of a worn rear sway bar mount bushing?Common signs include clunking noises over bumps and a loose, less controlled feeling during hard cornering.
Does this kit fit the WRX STI?This listing covers the WRX Limited. Check the STI's rear sway bar diameter before ordering, as STI models may use a different size bushing.
Will this bushing kit improve my WRX's handling?Yes, replacing worn factory bushings with polyurethane restores proper sway bar function and sharpens handling response.
Does this kit include mounting hardware?This kit includes the rear sway bar mount bushings only and reuses the factory mounting brackets.
Is this bushing kit covered under warranty?Yes, SuperPro backs this bushing kit with a lifetime warranty to the original purchaser.
Do I need special tools to install this kit?Basic hand tools are typically all that is needed since sway bar mount bushings do not require a press to install.
Install Instructions
- Raise and safely support the rear of the vehicle on jack stands
- Remove the rear sway bar mount brackets from the chassis
- Remove the worn factory bushings from the sway bar
- Install the new SuperPro polyurethane bushings onto the sway bar
- Reinstall the mount brackets and torque all fasteners to factory specification
- Lower the vehicle
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