ACT Prolite Steel Flywheel Subaru 2004-2021 STI | 600240

ACT Prolite Steel Flywheel: The ACT Prolite flywheel is made using the same premium quality, forged Chrome-Moly steel unit, that is CNC machined, and balanced. The Prolite flywheel has more material removed from the outer rim than the Streetlite to get it down to it's super-light, CEL causing 11.1lbs. ACT's Prolite flyweel will cause a check engine light.

If you are planning to drive your car on the street, in traffic, you do not want this light of a flywheel. The Prolite is a RACE ONLY flywheel. The Prolite also features an induction-hardened integral ring gear, and is durable and thick enough to be resurfaced. Certified to SFI Specification 1.1. Material: Chromoly Steel Weight: 11.1 lbs