The SPEC aluminum flywheel for 2017–2019 Honda Civic Si 1.5T is a lighter, direct-fit flywheel option intended to replace the factory unit. Offered as a vehicle-specific component, this SPEC flywheel provides an alternative to steel units for drivers seeking different rotational characteristics in driveline response for the listed Civic Si models.
Spec 17-19 Honda Civic Si 1.5T Aluminum Flywheel