The Competition Clutch Lightweight Steel Flywheel (Part Number 2-694D-ST) is engineered for Honda Civic models from 1988 to 2000, specifically designed for D15, D16, and D17 engine swaps. Crafted from forged 4140 steel, this one-piece flywheel offers durability and consistent performance. Its lightweight design, ranging from approximately 8 to 18 pounds depending on the application, helps improve throttle response and acceleration while maintaining low-end torque and driveability essential for street-driven and naturally aspirated engines. The ST suffix indicates a model optimized for Stage 1 and Stage 2 clutch setups, providing reliable engagement for daily driving and moderate performance upgrades.