Description
On 2015-2021 Subaru WRX STI, this Eibach Anti-Roll application changes roll stiffness directly, helping the chassis respond more immediately during steering transitions and sustained cornering.
Because anti-roll bars also influence front-to-rear handling balance, the selected axle or complete-kit configuration matters just as much as the bar diameter itself.
What makes this application specific: Eibach identifies front specification 25mm and rear specification 22mm for this listing. It should not be assumed interchangeable with another year, trim, or chassis that uses the same product family.
Why This Eibach Setup Makes Sense
- Precision-Tuned for Balance and Control:
- Increased Vehicle Stability:
- Compatible with OEM and Performance Setups:
- Engineered and Tested for Each Vehicle Application:
- Made by Eibach in the USA
Choosing the Correct Variant
Choose the front, rear, or complete-kit option according to the handling change you want. Bar diameter is a specification of the selected part rather than a separate customer choice.
- Configuration: Front, Front & Rear
Product Details
- Front: 25mm
- Rear: 22mm
- Eibach package: Front Sway Bar Kit Only / Front & Rear Sway Bar Kits
- Product family: ANTI-ROLL BAR KIT (FRONT ONLY) / ANTI-ROLL BAR KIT (FRONT&REAR)
- Eibach part numbers: 7728.310, 7728.320
What This Listing Represents
Front Sway Bar Kit Only / Front & Rear Sway Bar Kits. The selected Eibach part number determines the exact component or kit supplied.
Fitment Check
Confirm model year, trim, drivetrain, factory suspension package, and any equipment called out in the title before ordering. Similar-looking applications can use different Eibach part numbers.
Before Installation
Confirm the bar, bushings, brackets, and end links move freely through suspension travel and do not contact wheels, axles, exhaust, or nearby chassis components.
Fitment data is application-specific. Confirm the selected Eibach part number against the exact vehicle configuration before ordering.