Description
Enhance the stability and performance of your 2015-2021 Subaru WRX or WRX STI with the Kartboy Rear Differential Wedgelock System. Designed specifically for these models, this system ensures a more precise and secure fitment of the rear differential, reducing unwanted movement during aggressive driving or high-performance scenarios. The Wedgelock system is engineered to improve vehicle handling, responsiveness, and overall drivetrain integrity, making it an essential upgrade for enthusiasts and professionals alike.
Constructed from durable materials, the Kartboy Wedgelock system offers reliable performance under demanding conditions. Its installation is straightforward for those familiar with automotive modifications, and it is built to meet or exceed OEM standards. This product does not require additional certifications such as CARB approval, providing a hassle-free upgrade option. With a compact design, it seamlessly integrates into your vehicle’s existing structure, ensuring minimal disruption to your build.
Whether you’re upgrading your Subaru for track days, spirited driving, or daily performance, the Kartboy Wedgelock System delivers enhanced control and stability. It is an excellent choice for those seeking to maximize their vehicle’s handling capabilities without compromising reliability or ease of installation. Trust the quality and engineering of Kartboy to deliver a performance upgrade that meets your driving demands.
Features:
- Specifically designed for 2015-2021 Subaru WRX and WRX STI models
- Improves rear differential stability and handling
- Durable construction for reliable performance
- Easy installation with existing components
- No additional certifications required for installation









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