Whiteline KCA425 Front Lower Inner Rear Caster/Anti-Lift Bushings 08-25 Subaru

Vehicle Fitment

• 2008 Subaru Impreza WRX STI (GV/GR) - select years
• 2011-2014 Subaru Impreza WRX STI (GV/GR)
• 2015-2020 Subaru WRX STI (VA)
• 2015-2025 Subaru WRX (VA/VB)
• 2014-on Subaru WRX STI (VA/VB)
• 2016-2025 Subaru WRX AWD versions (various trims)
• 2015-2019 Subaru Outback (front lower inner rear bushing location)*
• 2015 Subaru Legacy (some trims)*

Features

• Front lower inner rear control arm anti-lift/caster correction bushing kit
• Double-offset synthetic elastomer design for enhanced dynamic alignment
• Allows positive static caster gains for sharper turn-in response
• Reduces unwanted front lift under acceleration
• Improves tyre contact patch and directional stability
• Can be tuned from anti-lift to anti-dive via supplied spacers
• Premium materials resist oil, grease and weathering
• Includes install guide and hardware for correct assembly

Specifications

• Part Number: KCA425
• Position: Front lower control arm - inner rear bushing
• Function: Anti-lift and caster geometry correction
• Material: Low-compliance synthetic elastomer with bearings
• Caster Change: Adds approximately +0.5° static positive caster
• Installation Time: ~2 hours
• Wheel Alignment: Professional alignment required after install

Included Components

• 2x Offset front lower inner rear bushings
• 10x Assorted spacers to tune caster/anti-lift behaviour
• Install guide

Product Description

The Whiteline KCA425 Front Lower Inner Rear Caster/Anti-Lift Bushings kit is an alignment and handling upgrade designed for Subaru WRX, WRX STI and selected Subaru Impreza models. These specially engineered synthetic elastomer bushings replace the stock front lower inner rear control arm bushings, providing a double-offset configuration that allows positive static caster gains and improved suspension geometry. This helps reduce front suspension lift under acceleration, sharpens turn-in response and supports a more consistent tyre contact patch during cornering.

Included spacers let owners tune the setup for anti-lift or anti-dive behaviour to suit their driving needs, and the kit includes an install guide for proper assembly. Ideal for enthusiasts and performance drivers, the KCA425 kit is backed by Whiteline's 3-year performance warranty and requires a professional wheel alignment after installation to realise its full handling benefits. *Legacy and Outback fitment covers the control arm bushing position - confirm VIN-specific compatibility before purchase.