{"product_id":"stage-2-clutch-flywheel-kit","title":"Stage 2 Clutch \u0026 Flywheel Kit","description":"The Action Clutch Stage 2 Clutch \u0026amp; Flywheel Kit is engineered for 2012-2015 Honda Civic Si vehicles equipped with the K24Z7 engine and a manual transmission. This kit is ideal for street cars that experience occasional track use or spirited driving, and it is suitable for full bolt-on or low boost applications.\n\nThe Stage 2 clutch disc utilizes steel-backed segmented Kevlar friction material, which handles heat better and offers longer life under demanding conditions compared to organic materials. This is complemented by a heavy-duty single diaphragm pressure plate that provides a 110% increase in clamping force over the stock unit, ensuring the clutch holds power without slipping. The pedal effort is slightly increased but remains manageable for smooth and progressive engagement, avoiding the abrupt grabiness sometimes found in puck-style clutches.\n\nAccompanying the clutch is a lightweight flywheel, weighing approximately 10 pounds. This reduction in rotational mass allows the engine to rev faster, resulting in more immediate throttle response. However, users should be aware that this can lead to increased drivetrain vibration at idle and low RPMs.\n\nCrucially, this clutch and flywheel combination requires a tune using Hondata FlashPro or KTuner. The lightweight flywheel alters engine rev characteristics, and an ECU tune is necessary to compensate for rev hang and prevent abnormal idle behavior. The kit also mandates a 1,000-mile break-in period with easy driving, avoiding hard launches or clutch slipping, to ensure proper seating of the Kevlar disc and maintain clutch longevity and holding capacity.","brand":"Action Clutch","offers":[{"title":"Default Title","offer_id":52686761787704,"sku":"ACC-CLK-01-K0","price":450.46,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0970\/4895\/3144\/files\/660178851.webp?v=1784876430","url":"https:\/\/store.motormia.co\/products\/stage-2-clutch-flywheel-kit","provider":"MOTORMIA","version":"1.0","type":"link"}