{"product_id":"4140-forged-steel-flywheel","title":"4140 Forged Steel Flywheel","description":"The Competition Clutch Ultra Lightweight Flywheel (STU version) is engineered for serious performance, specifically for turbo builds, track use, and Stage 3+ clutch setups. Crafted from a single piece of 4140 forged steel, it offers superior durability by eliminating the risk of ring gear separation and preventing friction surface warping. This design ensures the ring gear is machined directly into the flywheel body, a significant advantage over cheaper two-piece flywheels that can fail under heat cycling.\n\nWeighing in at just 8.58 pounds, this flywheel significantly reduces rotational mass, allowing your engine to rev faster and improving overall throttle response. While beneficial for performance, it's important to note that such lightweight flywheels can impact low-end drivability, requiring more engine revs for smooth starts. This STU version is optimized for high-performance clutches but is also compatible with stock and other performance clutches. For daily driving with stock or Stage 1\/2 clutches, Competition Clutch offers a heavier ST version that provides better street manners.\n\nThis flywheel is SFI certified, a crucial requirement for many racing classes. The product includes an alignment tool (if applicable) and comes with a 90-day warranty. It is compatible with 1990-2001 Acura Integras with B series engines (B18A1, B18B1, B18C1, B18C5), 1999-2000 Honda Civic Si, and 1994-1997 Honda Del Sol VTEC models.","brand":"Competition Clutch","offers":[{"title":"Default Title","offer_id":52687452045624,"sku":"COC-2-694-STU","price":275.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0970\/4895\/3144\/files\/661177701.webp?v=1784884230","url":"https:\/\/store.motormia.co\/products\/4140-forged-steel-flywheel","provider":"MOTORMIA","version":"1.0","type":"link"}