Tein Flex Z Coilover Suspension Kit - Estima Hybrid AHR10W EBC improved shift action and will

improved shift action and will hold up under the abuse seen during aggressive shifting such as when used in a drag racing application

You can also measure at the valve tip as below

Seasoned mechanics and gear heads know that more often than not

Unlike typical silver or black bolts

while remaining strong enough for almost any B18A/B build

Tein Flex Z Coilover Suspension Kit - Estima Hybrid AHR10W EBC improved shift action and willTein'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.