{"product_id":"lightweight-flywheel-1","title":"Lightweight Flywheel","description":"The Nismo Lightweight Flywheel (part number 12310-RSR41) is engineered to enhance engine performance by significantly reducing rotational mass. Crafted from high-strength chrome-molybdenum steel (SCM440H), this flywheel weighs only 8.31 kg, a substantial reduction from the OEM weight of 14.24 kg. This difference results in a 60% to 70% weight reduction and a decrease in inertial weight from 2.615 kg\/cm²\/sec² to 2.097 kg\/cm²\/sec².\n\nWhen used in conjunction with a Nismo clutch cover and clutch disc, it achieves a total inertia weight reduction of 80% to 85%, minimizing torque loss at low speeds and sharpening high-RPM response. For those seeking a more direct connection to the drivetrain, using this flywheel with a solid metal disc offers a distinct advantage over dual-mass units.\n\nInstallation considerations include the use of included flywheel bolts and a press-in type dowel pin. While it can be used with the OEM clutch layout, it is recommended for optimal performance with the NISMO Sports Clutch Kit 3000S-RSR45-E. The product is compatible with Nissan Skyline GT-R BNR34 models equipped with the RB26DETT engine, specifically covering production dates from January 1999 through August 2002.","brand":"NISMO","offers":[{"title":"Default Title","offer_id":52663115284792,"sku":"12310-RSR41","price":750.5,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0970\/4895\/3144\/files\/687515330.jpg?v=1784323950","url":"https:\/\/store.motormia.co\/products\/lightweight-flywheel-1","provider":"MOTORMIA","version":"1.0","type":"link"}