Tein Flex Z Coilover Suspension Kit - Jazz GD1 BC Racing it is the same weight

it is the same weight as aluminium but much stronger

with a damper with a special structure

Compatible with both the stock bumper or the SPOON Aero Bumper

Whiteline's differential bushing solutions ensure pinion angles are maintained while delivering an improved gear shift resulting in reduced initial torque loss and greater power transfer to the wheels

For a more in-depth explanation

Tein Flex Z Coilover Suspension Kit - Jazz GD1 BC Racing it is the same weightTein'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.