Ferrea VS1025 Viton Valve Stem Seals for Mitsubishi Evo X 4B11T

The Ferrea VS1025 valve stem seals are high-performance intake valve seals engineered specifically for Mitsubishi Lancer Evolution X 4B11T and Hyundai Genesis Coupe 2.0T engines. These premium valve stem seals are designed to work with Ferrea's valve guide system for optimal sealing and performance.

Key Features:

• 5.5mm valve stem diameter design for precise fitment
• Viton rubber compound construction for superior heat resistance
• Special hi-temp formulation withstands extreme combustion temperatures
• CNC precision-engineered to exact tolerances for reliable sealing
• Compatible with both titanium and stainless steel valves
• Race-proven design tested in professional motorsports applications

Ferrea valve stem seals utilize advanced rubber compound materials specifically formulated for high-performance racing applications. The Viton construction provides exceptional durability and temperature resistance far exceeding OEM specifications. These seals are manufactured using the same technology developed for Formula 1, IndyCar, NASCAR, and drag racing teams. When upgrading cylinder head components or performing engine rebuilds, Ferrea recommends using their valve stem seals to ensure proper valve guide sealing and oil control.