Description
Upgrade the front suspension of your Subaru WRX or WRX STI with the SuperPro Front Lower Inner Rearward DuroBall Control Arm Bushing Kit with Caster. This double-offset control arm bushing kit is designed to improve suspension geometry, steering response, tracking, and overall front-end handling while providing a durable performance-oriented replacement for the original control arm bushings.
The rearward position of the lower control arm bushing provides additional positive caster, helping improve straight-line stability, steering return-to-center, dynamic camber behavior, and steering feel. The DuroBall design combines high-strength components with a spherical bearing-style construction to allow controlled suspension movement while reducing unwanted bushing deflection.
Additional caster can help maintain a more favorable tire contact patch during cornering and improve steering precision. By reducing excessive movement at the control arm pivot, the SuperPro DuroBall bushing kit helps provide more consistent suspension geometry and a more responsive driving experience.
The double-offset design is engineered specifically for performance applications where improved front suspension geometry and steering characteristics are desired. The kit is suitable for Subaru WRX and WRX STI applications listed below.
Product Features
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Front lower inner rear control arm bushing kit
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Double-offset design
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DuroBall construction
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Designed to add positive caster
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Helps improve straight-line stability and vehicle tracking
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Enhances steering return-to-center
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Improves steering response and feel
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Helps optimize dynamic suspension geometry
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Helps maintain improved tire contact during cornering
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Reduces unwanted control arm movement and deflection
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Performance-oriented suspension upgrade
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Designed and engineered by SuperPro
Installation & Specifications
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Installation Difficulty: Difficult
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Installation Time: 2 hours
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Kit Contents: 2 Shell Bushings, 10 Spacers
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Wheel Alignment Required: Yes
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Website Position: Front
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Bushing Type: Lower Inner Rear
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Bushing Design: Double Offset
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Performance Feature: Additional Caster
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Product Type: Control Arm Bushing Kit
Fitment
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2015-2021 Subaru WRX Base H4.1998cc
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2022-2024 Subaru WRX Base H4.2387cc
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2022-2026 Subaru WRX GT H4.2387cc
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2015-2021 Subaru WRX Limited H4.1998cc
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2022-2026 Subaru WRX Limited H4.2387cc
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2015-2021 Subaru WRX Premium H4.1998cc
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2022-2026 Subaru WRX Premium H4.2387cc
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2015-2021 Subaru WRX STI Base H4.2458cc
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2015 Subaru WRX STI Launch Edition H4.2458cc
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2015-2021 Subaru WRX STI Limited H4.2458cc
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2019 Subaru WRX STI S209 H4.2458cc
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2016 Subaru WRX STI Series.HyperBlue H4.2458cc
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2018 Subaru WRX STI Type RA H4.2458cc
SuperPro's DuroBall control arm bushing technology is intended for drivers seeking improved suspension control, sharper steering response, and more consistent front-end geometry. Because a wheel alignment is required after installation, professional installation and alignment are recommended to ensure the suspension is correctly adjusted.
