Ferrea Subaru WRX EJ20 Endurance Dual Spring Kit

If you're building a high-performance Subaru WRX with an EJ20 engine and pushing the limits, you need valve springs that can keep up. This Ferrea Endurance Dual Spring Kit is built to handle the demands of aggressive driving and increased engine speeds. It's designed to ensure your valves close reliably, even under extreme conditions, which is crucial for maintaining engine health and performance when you're really asking your car to perform.

Ferrea is known for making well-built valvetrain components, and this kit is no exception. It features a dual spring design, meaning there are two springs working together for each valve. This setup offers improved stability and control over the valve's movement, especially at higher RPMs where stock springs can struggle. The springs are made from strong materials chosen for their ability to withstand the heat and stress inside the engine, helping to prevent valve float and ensure consistent valve seating. This kit is a solid choice for anyone serious about getting the most out of their EJ20 engine build.

When installing this kit, it's important to follow the manufacturer's instructions carefully, as proper setup is key to achieving the intended performance and reliability. You'll want to ensure all components are correctly seated and that you're working within the specified RPM range for your build. This kit is a significant upgrade for enthusiasts looking to build a robust and responsive EJ20 engine.