Exedy Lightweight Flywheel (03-06 350z, 03-07 G35) Drivetrain G35 JWT Cam Bolt Seal -

JWT Cam Bolt Seal - Copper (2)

Harmonic Balancer Finish:Black zinc chromate

They're tunable in the field

SFI Approved: The SFI Specification establishes uniform test procedures and minimum standards for evaluating and determining performance capabilities specifically for replacement flywheels used by individuals engaged in competitive motorsports

rebuildable

Exedy Lightweight Flywheel (03-06 350z, 03-07 G35) Drivetrain G35 JWT Cam Bolt Seal -EXEDY Lightweight Flywheels combine low weight, low inertia and high thermal capacity. They are designed for light to moderately tuned racing cars for drag racing, autocross and rally events, as well as street usage. They are made from solid one piece billet chromoly steel or chromoly steel forgings. They are specifically designed to reduce weight and inertia for better engine response. Most incorporate special design features to enhance the airflow