• COBB Rear Inner Std Alignment Control Arm Bush | Subaru WRX/STI (15-21) (CB-4425K)
  • COBB Rear Inner Std Alignment Control Arm Bush | Subaru WRX/STI (15-21) (CB-4425K)
  • COBB Rear Inner Std Alignment Control Arm Bush | Subaru WRX/STI (15-21) (CB-4425K)
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COBB Rear Inner Std Alignment Control Arm Bush | Subaru WRX/STI (15-21) (CB-4425K)

COBB Rear Inner Std Alignment Control Arm Bush | Subaru WRX/STI (15-21) (CB-4425K)

CB-4425K

In stock

$270.00 USD
$270.00 USD $270.00 USD
ADDITIONAL DISCOUNTS APPLIED AT CHECKOUT Sold out

The Cobb Control Arm Inner Rear Standard Alignment Bushing is a precision-engineered suspension component designed for 2015–2021 Subaru WRX and WRX STI models. This high-performance bushing replaces the factory inner rear control arm bushings to reduce compliance and enhance suspension accuracy. Constructed from a low compliance synthetic elastomer paired with high-performance bearings, it delivers improved handling responsiveness and more predictable vehicle dynamics. The design maintains OEM alignment specifications, making it an ideal upgrade for enthusiasts seeking enhanced control without compromising factory settings. Its durable materials ensure long-lasting performance under demanding driving conditions.

This bushing is specifically compatible with Subaru WRX and WRX STI vehicles from 2015 through 2021, fitting as a direct replacement for the inner rear control arm bushings. It is intended for street and performance driving where improved suspension precision is desired. Installation is straightforward, requiring removal of the factory bushings and press-fitting the Cobb upgrade in their place. This part is ideal for drivers looking to improve handling on both daily driven and track-focused vehicles while maintaining factory alignment geometry. The kit includes the inner rear control arm standard alignment bushing designed to integrate seamlessly with existing suspension components.

Overview

COBB Control Arm Inner Rear Standard Alignment Bushing

Fitment: 2015-2021 Subaru WRX / 2015-2021 Subaru WRX STI

Part #: CB-4425K

Overview

The COBB Control Arm Inner Rear Standard Alignment Bushing is designed to enhance the suspension precision of your 2015-2021 Subaru WRX or WRX STI. This high-performance replacement bushing addresses the common issue of worn factory bushings by reducing compliance, resulting in more predictable and responsive handling characteristics. It is ideal for enthusiasts who want to maintain OEM alignment specifications while improving vehicle dynamics and overall driving confidence.

By upgrading to this bushing, drivers can expect improved suspension control and stability, especially during spirited driving or track use. The product supports a firmer connection between the control arm and chassis, helping to minimize unwanted movement and enhance feedback without compromising ride quality.

Key Features

This control arm bushing offers a precise balance of durability and performance benefits, including:

  • Constructed with a low compliance synthetic elastomer for reduced deflection and improved handling response
  • Incorporates high-performance, low compliance bearings to maintain alignment accuracy under load
  • Designed as a direct replacement for factory bushings, ensuring proper fitment and ease of installation
  • Helps maintain OEM alignment specifications for consistent suspension geometry
  • Supports enhanced vehicle dynamics by reducing unwanted suspension movement

Installation & Fitment

This bushing is engineered specifically for the inner rear control arm of 2015-2021 Subaru WRX and WRX STI models. Installation typically requires suspension disassembly and should be performed by a qualified technician or experienced enthusiast. Fitment should be verified against your vehicle’s specifications and the part number to ensure compatibility.

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