Competition Clutch Lightweight Steel Flywheels are engineered for naturally aspirated engines and street-driven performance vehicles, delivering an excellent balance of durability, drivability, and performance. Constructed from one-piece 4140 forged steel, these flywheels are designed to reduce rotating mass while maintaining the low-end torque and street manners needed for everyday driving.Compared to a heavier factory flywheel, a Competition Clutch lightweight steel flywheel allows the engine to rev more quickly and respond faster to throttle inputs. The result is improved engine responsiveness without sacrificing the durability and drivability expected from a street-performance vehicle.With application-specific weights typically ranging from 8 to 18 pounds, these flywheels offer a variety of options for different performance needs. They are an excellent choice for daily-driven vehicles, spirited street cars, and naturally aspirated performance builds, and are compatible with a wide range of performance clutch applications.