Whiteline Front Control Arm - Lower Inner Rear Bushings

Fitment: 2015-2024 Subaru WRX / 2011-2020 STi

Part #: KCA425

Overview

The Whiteline Front Control Arm - Lower Inner Rear Bushings are designed to enhance the handling and stability of your Subaru WRX or STi. Crafted for enthusiasts seeking improved suspension response and durability, these bushings are a vital upgrade for maintaining precise wheel alignment and reducing unwanted movement in the control arms. They are ideal for drivers who want to optimize their vehicle’s handling characteristics, especially during spirited driving or track days. Made from high-quality materials, these bushings help support consistent performance and long-lasting reliability, ensuring your suspension remains responsive over time.

Key Features

This set of lower inner rear bushings features advanced design and durable construction to improve your vehicle’s suspension performance. Key features include:

• High-performance polyurethane material for enhanced durability and resistance to wear
• Designed to reduce unwanted control arm movement and improve handling response
• Precision-engineered to maintain proper suspension geometry
• Corrosion-resistant coating for long-term reliability
• Easy installation with OEM fitment compatibility
• Helps restore factory-like handling feel and stability

Construction & Design

These bushings are constructed from high-grade polyurethane, selected for its excellent balance of flexibility and strength. The design focuses on reducing deflection and maintaining consistent suspension alignment under load, which contributes to sharper steering response and improved cornering stability. The bushings are engineered to withstand harsh driving conditions, including exposure to moisture, road debris, and temperature fluctuations, ensuring longevity and sustained performance.

Installation & Fitment

Installation involves replacing the factory bushings with these upgraded components, typically requiring basic suspension tools. Proper fitment should be verified against your vehicle’s specific model year and configuration to ensure compatibility. The bushings are designed as direct replacements for the OEM parts, facilitating a straightforward upgrade process.

What’s Included

The package includes a set of lower inner rear control arm bushings, ready for installation on compatible Subaru WRX and STi models. Hardware or additional components are not included and should be sourced separately if needed.

Ideal For

This product is perfect for Subaru owners looking to improve their vehicle’s handling precision, reduce suspension play, and enhance overall driving engagement. It is well-suited for both daily drivers and performance enthusiasts aiming for a more responsive and predictable suspension feel.