Supertech Mitsubishi EVO X 4B11 Dual Valve Spring Kit (Use OEM Seal-Seat)

Constructed from high-tensile chrome-silicon wire, this dual valve spring kit from Supertech is built to handle the demands of your Mitsubishi EVO X's 4B11 engine. These springs are designed to provide the necessary seat and open pressures for high-performance camshafts, ensuring your engine's valvetrain stays in sync even at high RPMs. The kit utilizes a dual spring design, which helps to dampen harmonic vibrations and prevent valve float, a common issue when pushing an engine beyond its stock capabilities. This improved stability is crucial for maintaining engine power and preventing potential damage under aggressive driving conditions.

Supertech has engineered these springs with specific attention to the needs of tuners and performance enthusiasts. The chrome-silicon material offers excellent fatigue resistance and durability, meaning these springs will maintain their intended pressures over a long service life. This kit is designed to work with the OEM seal-seat, simplifying installation and ensuring a proper seal. When you're rebuilding the top end of your 4B11 or upgrading to more aggressive camshafts, a robust valve spring setup like this is essential for reliable performance. This kit is a solid option for anyone looking to extract more power and reliability from their EVO X.

This kit includes the dual valve springs. It is designed to use your vehicle's original seal-seats. Ensure you have the necessary tools and knowledge for valvetrain work, or consult a professional mechanic for installation.