Whiteline Front Lower Control Arms w/ Caster Correction Subaru WRX 2015-2021 / STI 2015-2017 | KTA407

Upgrade your 2015-2021 Subaru WRX and 2015-2017 STI VA chassis suspension with the Whiteline KTA407 Front Lower Control Arm Assembly. Designed to improve handling, alignment control, and front-end response, these performance control arms provide increased stability and sharper driving dynamics for street, autocross, and track applications.

The KTA407 replaces factory control arms with lightweight performance alloy units designed to improve suspension geometry, increase caster, and provide anti-lift correction. The result is improved steering feel, better traction, and more consistent handling during acceleration, braking, and aggressive cornering.

Product Features

• Lightweight alloy front lower control arms
• Improved suspension geometry
• Increased caster for improved steering response
• Anti-lift correction for better traction
• Reduced suspension deflection
• Improved chassis feedback
• Performance-focused design
• Suitable for street, autocross, and track use
• Sold as a complete left and right arm assembly

Performance Benefits

• Sharper turn-in response
• Improved front-end grip
• Better corner exit traction
• Increased steering stability
• More consistent alignment under load
• Improved handling balance
• Enhanced driver feedback

Why Choose Whiteline KTA407?

Factory control arms are designed around comfort and everyday driving, but performance driving demands more from suspension components. The Whiteline KTA407 Front Lower Control Arms provide improved geometry and increased rigidity to help your Subaru respond faster and handle more predictably.

Whether you're building a faster street WRX, autocross car, or track-focused STI, the KTA407 delivers the control and confidence needed for improved performance.