Brian Crower EJ257 Single Spring Titanium Retainer Kit for 86-17 Subaru WRX STI

Brian Crower EJ257 Single Spring Titanium Retainer Kit for 86-17 Subaru WRX STI

The Brian Crower EJ257 Single Spring Titanium Retainer Kit is specifically engineered for the Subaru WRX STI models manufactured between 1986 and 2017. Designed with high-performance applications in mind, this retainer kit enhances both reliability and efficiency in the engine's valve train. Its construction from lightweight titanium significantly reduces the overall weight of the components, thereby minimizing unwanted mass that can lead to valve float at high RPMs. With this innovative design, engine enthusiasts can expect improved throttle response and an increase in overall engine performance.

This retainer kit plays a pivotal role in the engine's air intake and exhaust functions. By providing a precise fit and maintaining optimal spring pressure, it ensures that the valves open and close swiftly and efficiently. This responsiveness is essential for maintaining proper combustion, which directly correlates to enhanced horsepower and torque. Furthermore, the durability of titanium in this kit also extends engine life, making it a wise investment for any WRX STI owner aiming to maximize their vehicle's performance capabilities.

FITMENT: Compatible with 1986-2017 Subaru WRX STI models, this retainer kit is specifically designed to integrate seamlessly into the existing engine setup, ensuring a straightforward installation process for aftermarket performance upgrades.

Key Features & Benefits

• Manufactured from lightweight titanium for reduced weight and enhanced performance.
• Designed to optimize valve train efficiency and reliability at high RPMs.
• Improves throttle response, contributing to increased horsepower and torque.
• Durable construction extends engine lifespan, making it ideal for performance enthusiasts.
• Simple installation process for compatibility with 86-17 Subaru WRX STI models.

2002-2014 Subaru Impreza, 2004-2013 Subaru Forester, 2005-2012 Subaru Legacy, 1986-1993 Toyota Celica and 5 more

Fitment data from the manufacturer catalogue. Check your engine before ordering, or call us.

Shipping. Free on every order, US only. Orders arrive in 2–4 days.

Returns. 30-day returns, except in extreme cases.

Support. Our team is available 24/7 for fitment mismatches or any other reason.

Warranty. Full manufacturer guarantee.