The SPEC steel flywheel for the 2017–2019 Honda Civic Si replaces the factory flywheel in compatible drivetrains and is intended to work with the vehicle’s clutch system. As a direct drivetrain component, it restores the rotational mass and connection point needed by the clutch assembly. SPEC flywheels are offered as service and upgrade parts for clutch replacement or drivetrain rebuilds.
Spec 17-19 Honda Civic Si Steel Flywheel