Whiteline Front Lower Control Arms w/ Caster Correction 2015-2021 WRX | Alloy Construction | Adjustable Suspension Arms
Overview
The Whiteline Front Lower Control Arms with Caster Correction are a precision-engineered suspension upgrade designed specifically for the 2015-2021 Subaru WRX. These control arms replace the factory components to deliver sharper handling, improved steering response, and enhanced front-end grip. Ideal for enthusiasts seeking to elevate their WRX’s cornering performance on both street and track, this kit addresses common suspension geometry limitations while reducing unsprung weight for better overall vehicle dynamics.
Crafted from lightweight alloy, Whiteline’s control arms incorporate high-performance bushings that minimize deflection under load, maintaining precise suspension alignment during aggressive driving. The design includes an additional 0.5 degrees of positive caster, a critical adjustment that improves straight-line stability and turn-in response. Adjustable spacers are also included, allowing fine-tuning of anti-lift and anti-dive characteristics to tailor the suspension behavior to your driving style and conditions.
For Subaru WRX owners, this upgrade translates to greater front-end confidence, more predictable handling, and a more connected driving experience. The combination of reduced weight, enhanced geometry, and adjustability makes these control arms a foundational component for anyone serious about maximizing their VA WRX’s suspension performance.
Features & Specifications
This Whiteline Front Lower Control Arms kit is engineered exclusively for the 2015-2021 Subaru WRX and features lightweight alloy construction with adjustable caster correction. Constructed from durable alloy, it delivers improved handling precision and suspension tuning flexibility for Subaru enthusiasts seeking enhanced front-end stability and grip.
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Brand: Whiteline
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Product: Front Lower Control Arms w/ Caster Correction
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Part Number: KTA407
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Fitment: 2015-2021 Subaru WRX
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Material: Alloy
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Finish: Natural alloy finish
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Construction: Precision machined and assembled
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Origin: Australia
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Caster Correction: +0.5 degrees positive caster
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Adjustability: Anti-lift and anti-dive geometry tuning spacers included
Key Benefits
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Handling: Enhanced front-end grip and sharper steering response for improved cornering precision
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Weight Savings: Lightweight alloy reduces unsprung mass, improving suspension responsiveness
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Geometry Correction: +0.5° positive caster improves straight-line stability and turn-in feel
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Adjustability: Included spacers allow tuning of anti-lift and anti-dive characteristics to match driving style
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Durability: High-performance bushings minimize deflection and maintain suspension alignment under load
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Fitment: Designed specifically for the VA Subaru WRX, ensuring precise OEM-level fit and finish
What's Included
- 2× Whiteline Alloy Front Lower Control Arms with Caster Correction
- Adjustable spacers for anti-lift and anti-dive tuning
- Mounting hardware
- Installation instructions
Installation & Compatibility
Installation of the Whiteline Front Lower Control Arms requires moderate mechanical skill and basic hand tools. While the bolt-on design facilitates a straightforward swap, professional installation is recommended to ensure proper torque settings and alignment. After installation, a full alignment is necessary to optimize caster settings and suspension geometry. No major modifications are required, but tuning the anti-lift and anti-dive spacers to your preference may require iterative adjustments. These control arms are compatible exclusively with 2015-2021 Subaru WRX models; verify your vehicle’s year and trim before purchase.
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Professional Installation: Recommended
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Modifications Required: None
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Verify Compatibility: Confirm fitment for your specific 2015-2021 WRX model
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