Exedy Lightweight Flywheel Subaru STI 2004-2012 Bare Case Halves with their lighter weight retainers

with their lighter weight retainers allow for engines to rev quicker and maintain a more stable valve motion than the traditional cylindrical springs of yesteryear

These DO NOT fit FA20 applications

Which has less rotational mass

2016 Subaru WRX Limited 2

Exedy Lightweight Flywheel Subaru STI 2004-2012 Bare Case Halves with their lighter weight retainersEXEDY flywheels combine low weight, low inertia, and high thermal capacity. They are designed for lightly 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 which improves the