Tein Flex Z Coilover Suspension Kit - Mark X GRX121 51321-SNA-A02 Each kit includes Skunk2’s high-quality

Each kit includes Skunk2’s high-quality valve springs and race-proven titanium retainers that are the result of nearly two decades of racing and engine building experience

Whether you need a new mount or want to upgrade your current one

A necessity when installing the Ultra Street Intake Manifold on the 06-15 Civic Si

A 10% increase in spring rate enhances cornering precision whilst an irregular-pitched

This feature is especially useful in racing applications where coolant only runs through the cylinder head

Tein Flex Z Coilover Suspension Kit - Mark X GRX121 51321-SNA-A02 Each kit includes Skunk2’s high-qualityTein's flagship coilover, the Flex Z includes all the features you'd want on a suspension kit. 16 level damping adjustment, full ride height control and replacement top mounts make Flex Z the complete package. Highly durable, each Flex Z kit features thorough rust proofing and is made of high strength, highly durable steel for added peace of mind.