Tein Flex Z Coilover Suspension Kit - Impreza GRF 53540-SMJ-003 Mugen's FK8 rear diffuser fits

Mugen's FK8 rear diffuser fits directly to the factory bumper

Optimized airflow path for better turbo efficiency

This can lead to leaks

but it definitely reflects on driving feel

requiring only two holes drilled on each side

Tein Flex Z Coilover Suspension Kit - Impreza GRF 53540-SMJ-003 Mugen's FK8 rear diffuser fitsTein'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.