Ferrea 17-20 Honda Civic Si L15 21.35mm OD 14.98mm ID Alloy Single Valve Springs - Set of 4

Upgrade your Honda Civic Si L15 engine with the Ferrea Alloy Single Valve Springs designed specifically for models from 2017 to 2020. These high-performance springs feature a 21.35mm outer diameter and a 14.98mm inner diameter, ensuring optimal fit and reliable valve operation. Made from durable alloy, they offer excellent heat resistance and longevity, making them suitable for both stock and upgraded engine configurations. Proper valve spring selection is crucial for maintaining valve control and engine stability during high RPM operations, and these springs are engineered to meet those demanding needs.

The Ferrea brand is known for precision manufacturing and high-quality components that enhance engine performance and durability. Installing these springs can improve valve response and help prevent valve float at higher engine speeds, contributing to overall engine efficiency and power output. Whether you're rebuilding your engine or upgrading for performance gains, these springs provide a reliable solution that adheres to strict manufacturing standards.

This set includes four alloy valve springs, making it ideal for complete cylinder head upgrades or replacements. They are compatible with the specified Honda Civic Si L15 engines and are designed for seamless integration with existing valve train components. Trust Ferrea’s expertise in automotive performance parts to ensure your engine runs smoothly and efficiently, whether on the street or at the track.

Features:

• Designed specifically for 2017-2020 Honda Civic Si L15 engines

• Outer diameter: 21.35mm for precise fit and performance

• Inner diameter: 14.98mm for optimal valve seating

• Made from durable alloy for heat resistance and longevity

• Set of four springs suitable for complete valve train upgrades