Subaru WRX STI Control Arms - Front Lower - COBB - Alloy Offset Caster - 2015–2021. These COBB alloy front lower control arms are a direct-fit upgrade for 2015–2021 WRX & STI models, engineered to refine steering feel and alignment potential.

Featuring an offset caster design, this complete arm assembly adds positive caster for improved on-center stability and cornering feedback while maintaining factory mounting points. The robust alloy construction provides dependable strength for enthusiastic driving, and the geometry is tailored for owners seeking predictable response with extra room for performance alignment. Thoughtfully designed to integrate with stock or aftermarket suspension components, it’s a smart foundation for a well-sorted chassis.

Features

• 2015–2021 Subaru WRX & STI fitment, including 2018 Type RA
• Alloy front lower control arm, complete assembly
• Offset caster geometry for added positive caster
• Direct-fit replacement using factory pick-up points
• Compatible with stock or performance suspension setups
• COBB engineered quality and precise fit

Have questions about fitment or how these arms suit your build? Call our team—we’re happy to help and can schedule installation or custom setup at our shops in Austin, Texas and the Los Angeles, California area. Texas: 512-982-9393. California: 562-981-6800.

If you’re considering multiple items, contact us for possible shipping discounts. We install on premises at both locations.

CA Residents: WARNING: Cancer and Reproductive Harm - www.P65Warnings.ca.gov