Supertech Performance RET-TS60IN2-WRX Titanium Valve Spring Retainers WRX/STI EJ20 EJ25

Designed to work with the SPR-TS1015 inner/outer dual spring setup, these retainers are a direct upgrade for high-performance and race applications requiring a reliable, lightweight valvetrain solution.

Key Features:

• Aerospace-Grade Titanium Construction: Manufactured from high-strength, hardened aerospace-certified titanium alloy for exceptional durability under extreme conditions
• CNC Machined: Precision CNC machined to tight tolerances for a secure, consistent fit and long-term reliability
• Reduced Valvetrain Mass: Titanium construction significantly reduces rotating mass compared to steel retainers, helping to prevent valve float at high RPM
• Dual Spring Compatible: Designed for use with the Supertech SPR-TS1015 inner/outer dual spring series
• Race-Proven Design: Trusted in high-performance and motorsport applications where valvetrain integrity is critical
• Sold as a Set: Includes 16 titanium retainers — a full set for one complete engine head

Supertech Performance titanium retainers are an essential component when building or upgrading a high-revving Subaru EJ-series engine. By reducing valvetrain weight, they allow the engine to rev more freely while maintaining precise valve control, making them ideal for both track and aggressive street performance builds.