Tein Flex Z Coilover Suspension Kit - 4 Series Gran Coupe (F36) 4A20 Intake excessive fuel) can cause a

excessive fuel) can cause a loss in power

whichever comes first

the inner surface is finished to a mirror finish using diamond cutting techniques

The easier 2-3 shift and reduced chance of a 1-2-1 or 2-3-2 mis-shift is a great benefit as well

Tein Flex Z Coilover Suspension Kit - 4 Series Gran Coupe (F36) 4A20 Intake excessive fuel) can cause aTein'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.