Tein Flex Z Coilover Suspension Kit - GS350 GRL10 Clearance40 Turbosmart’s Manual Boost Controller is

Turbosmart’s Manual Boost Controller is also designed to be durable and reliable

It meets the JWL-T strength standards for this class

The spring rate was tested on various stages

The main body is made of stainless steel with a semi-gloss black powder coating for luxurious specifications

the center cap is included for the first time in the R-series

Tein Flex Z Coilover Suspension Kit - GS350 GRL10 Clearance40 Turbosmart’s Manual Boost Controller isTein'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.