EXEDY Racing Flywheels are made from solid one piece billet chromoly steel forgings. They are specifically designed to reduce weight and inertia for better engine response.
The ring gear teeth are milled onto the flywheel unlike an aluminum flywheel where the ring gear is pressed onto the flywheel and have the possibility of separating from the flywheel. This NF04 Flywheel weighs in at just 19.05 Lbs comparred to the factory dual mass flywheel that weighs in at 30.9 Lbs. Meets or exceeds Sfi 1.1