Lightweight billet flywheel to replace factory flywheel. Suits 5 speed gearbox. This Lightweight Billet Steel Flywheel is individually engineered to have the ability to dissipate heat away from the clutch to improve performance. The way we do this is by making the friction area of the flywheel as thick as possible while removing as much weight from the outer diameter to improve the dynamic weight. This in-turn also allows our flywheels to be machined and reused repeatedly without the cost of replacement. Machined in house Type: Lightweight Performance Flywheel Product Weight: 10.1kg Suits Clutch Kit: NPC6531, NPC6531CB, NPC6531B, NPC6531-10, NPC6531B-10, NPC6531-10CB Flat Ring Gear: Yes Ring Gear Part Number: RG108 Replaces Dual Mass Flywheel: No Spigot: Not Included Make Nissan Model Silvia Release Year 1986 - 2007 Series SR20DET S13 KPS13 PS13, S14 CS14 NPC Performance Clutches are an Australian based, family owned business dedicated to producing high quality, high performance clutches to suit all needs - from daily drivers to heavy towing, and track or race cars. Components are sourced from OE manufacturers and modified to meet the greater demands of modern performance vehicles.