What is the main benefit of using dual valve springs?

Dual valve springs offer better control over valve motion, especially at higher engine speeds. They help to dampen vibrations and ensure the valves close reliably, preventing valve float which can damage the engine.

Are retainers and valve seals included with this kit?

This kit includes the dual valve springs only. You will need to source compatible retainers and valve seals separately to complete the installation.

What kind of engine builds are these springs best suited for?

These springs are designed for performance-oriented EJ25 engine builds. They are ideal for applications involving higher RPM ranges and more aggressive camshafts where stock springs might not be sufficient.

Supertech EJ25 Dual Valve Spring Kit SPRK-TS1015-SU5

Name: Supertech Subaru Impreza EJ25 Dual Valve Spring Kit
Brand: Supertech
SKU: supertech-supertech-subaru-impreza-ej25-dual-valve-spring-kit-t14-316270
Price: 629.53 USD
Availability: InStock

Supertech Subaru Impreza EJ25 Dual Valve Spring Kit

$629.53

Only 2 left in stock

Supertech Dual Valve Spring Kit for Subaru Impreza EJ25 engines.

Key Features

Fits Subaru Impreza EJ25 engines.
Dual spring design for improved valve control.
Constructed from well-built materials for durability.
Designed for higher RPM and aggressive camshaft profiles.
Helps prevent valve float at high engine speeds.

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Product Details

If you're rebuilding the top end of your Subaru Impreza's EJ25 engine, especially for performance applications, a strong set of valve springs is crucial. This dual valve spring kit from Supertech is built to handle the demands of higher RPMs and more aggressive camshaft profiles. They help ensure the valves close reliably and quickly, preventing valve float which can lead to serious engine damage at high speeds.

This kit includes dual springs, which means there are two springs working together for each valve. This setup offers better dampening and control over valve motion, especially as engine speeds increase. The springs are made from well-built materials designed for durability under repeated stress. Supertech is known for producing reliable engine components, and this kit is no exception, offering a solid option for enthusiasts looking to get the most out of their EJ25 build. You'll want to make sure you have the correct retainers and valve seals to go with these springs, as they are sold separately.

When installing these, pay close attention to the manufacturer's specifications for seat pressure and installed height. Proper installation is key to achieving the performance and reliability you're looking for. This kit is a significant upgrade over stock springs and is a popular choice for those pushing their Subaru engines beyond factory limits.