Ferrea E11089-1 Pro CNC Titanium Valve Spring Retainer

The Ferrea E11089-1 is a precision-engineered Pro CNC Series titanium valve spring retainer designed for high-performance and racing applications. This single retainer is part of Ferrea's premium valvetrain component lineup, commonly used in Mitsubishi Evolution X 4B11T and Hyundai Genesis 2.0T G4KF engine builds.

Key Features:

• Precision CNC machined from aerospace-grade titanium alloy for maximum strength and reliability
• Fully heat treated and finished to exact tolerances for consistent performance
• Offers approximately 40% weight reduction compared to conventional steel retainers
• Designed for use with Ferrea dual valve springs in high-RPM racing applications
• Compatible with Ferrea valve locks K10091 and seat locators SL1096
• Helps prevent valve float, coil bind, and valvetrain failure at high engine speeds

Ferrea Racing Components has been manufacturing premium valvetrain components for nearly 50 years, earning a reputation as a top-tier supplier in the racing industry. This titanium retainer is engineered to withstand extreme racing conditions while reducing reciprocating mass, allowing engines to rev higher and support more aggressive camshaft profiles. Each retainer is crafted to precise specifications to ensure proper fitment and optimal performance in demanding motorsports applications.