{"product_id":"bmw-e46-m3-clutch-smf-kit-stage-4-sport-pc-3154-s4pf","title":"BMW E46 M3 - Clutch SMF Kit-Stage 4 Sport - PC-3154-S4PF","description":"\u003cp class=\"MsoNormal\" style=\"mso-margin-top-alt: auto; mso-margin-bottom-alt: auto; line-height: normal;\"\u003e\u003cspan style=\"font-family: 'Times New Roman',serif; mso-fareast-font-family: 'Times New Roman'; mso-font-kerning: 0pt; mso-ligatures: none; mso-fareast-language: EN-GB;\"\u003eMaximum response. Minimum inertia. Motorsport intent.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp class=\"MsoNormal\" style=\"mso-margin-top-alt: auto; mso-margin-bottom-alt: auto; line-height: normal;\"\u003e\u003cspan style=\"font-family: 'Times New Roman',serif; mso-fareast-font-family: 'Times New Roman'; mso-font-kerning: 0pt; mso-ligatures: none; mso-fareast-language: EN-GB;\"\u003eThe \u003cb\u003ePerformance Clutches Stage 4 Sport Single Mass Flywheel Kit\u003c\/b\u003e for BMW E46 M3 platform is engineered for drivers who demand uncompromising drivetrain precision and the fastest possible engine response. Designed for serious competition environments, this system pushes rotational efficiency and torque capacity to the next level.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp class=\"MsoNormal\" style=\"mso-margin-top-alt: auto; mso-margin-bottom-alt: auto; line-height: normal;\"\u003e\u003cspan style=\"font-family: 'Times New Roman',serif; mso-fareast-font-family: 'Times New Roman'; mso-font-kerning: 0pt; mso-ligatures: none; mso-fareast-language: EN-GB;\"\u003eAt its core is our \u003cb\u003e7.2kg lightweight single mass flywheel\u003c\/b\u003e, manufactured from \u003cb\u003e4140 forged steel\u003c\/b\u003e with an \u003cb\u003eintegral ring gear\u003c\/b\u003e. This high-strength construction delivers exceptional durability and heat resistance while dramatically lowering rotational mass compared to OE dual-mass systems. The reduced moment of inertia enables ultra-fast rev climb, sharper throttle modulation, and extremely rapid gear transitions — critical in race and drift applications.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp class=\"MsoNormal\" style=\"mso-margin-top-alt: auto; mso-margin-bottom-alt: auto; line-height: normal;\"\u003e\u003cspan style=\"font-family: 'Times New Roman',serif; mso-fareast-font-family: 'Times New Roman'; mso-font-kerning: 0pt; mso-ligatures: none; mso-fareast-language: EN-GB;\"\u003eThe cover assembly incorporates a \u003cb\u003eQT450 steel pressure plate\u003c\/b\u003e, offering outstanding thermic capability and clamp load stability under sustained high-temperature and high-load operation.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp class=\"MsoNormal\" style=\"mso-margin-top-alt: auto; mso-margin-bottom-alt: auto; line-height: normal;\"\u003e\u003cspan style=\"font-family: 'Times New Roman',serif; mso-fareast-font-family: 'Times New Roman'; mso-font-kerning: 0pt; mso-ligatures: none; mso-fareast-language: EN-GB;\"\u003eWhat defines Stage 4 Sport is its \u003cb\u003erigid ceramic 6-paddle friction disc\u003c\/b\u003e. By eliminating the sprung hub and marcel cushioning, rotating mass is further reduced, lowering inertia within the clutch assembly itself. The result is even faster engine response and more direct torque transfer. The ceramic paddle configuration provides immediate engagement, exceptional heat resistance, and maximum slip control under extreme load.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp class=\"MsoNormal\" style=\"mso-margin-top-alt: auto; mso-margin-bottom-alt: auto; line-height: normal;\"\u003e\u003cspan style=\"font-family: 'Times New Roman',serif; mso-fareast-font-family: 'Times New Roman'; mso-font-kerning: 0pt; mso-ligatures: none; mso-fareast-language: EN-GB;\"\u003eThis is a fully competition-focused system.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp class=\"MsoNormal\" style=\"mso-margin-top-alt: auto; mso-margin-bottom-alt: auto; line-height: normal; mso-outline-level: 2;\"\u003e\u003cb\u003e\u003cspan style=\"font-size: 18.0pt; font-family: 'Times New Roman',serif; mso-fareast-font-family: 'Times New Roman'; mso-font-kerning: 0pt; mso-ligatures: none; mso-fareast-language: EN-GB;\"\u003eWhy this clutch kit stands out\u003c\/span\u003e\u003c\/b\u003e\u003c\/p\u003e\n\u003cp class=\"MsoNormal\" style=\"margin-bottom: 0cm; line-height: normal;\"\u003e\u003cspan style=\"font-family: 'Times New Roman',serif; mso-fareast-font-family: 'Times New Roman'; mso-font-kerning: 0pt; mso-ligatures: none; mso-fareast-language: EN-GB;\"\u003e• \u003cb\u003eRigid Ceramic 6-Paddle Disc\u003c\/b\u003e – Direct, uncompromising engagement with reduced rotational mass for faster drivetrain response.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp class=\"MsoNormal\" style=\"margin-bottom: 0cm; line-height: normal;\"\u003e\u003cspan style=\"font-family: 'Times New Roman',serif; mso-fareast-font-family: 'Times New Roman'; mso-font-kerning: 0pt; mso-ligatures: none; mso-fareast-language: EN-GB;\"\u003e• \u003cb\u003eReduced Internal Inertia\u003c\/b\u003e – Rigid hub design minimises energy loss and sharpens throttle and shift response.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp class=\"MsoNormal\" style=\"margin-bottom: 0cm; line-height: normal;\"\u003e\u003cspan style=\"font-family: 'Times New Roman',serif; mso-fareast-font-family: 'Times New Roman'; mso-font-kerning: 0pt; mso-ligatures: none; mso-fareast-language: EN-GB;\"\u003e• \u003cb\u003e7.2kg 4140 Forged Steel Flywheel\u003c\/b\u003e – Lightweight yet exceptionally strong with integral ring gear for long-term durability.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp class=\"MsoNormal\" style=\"margin-bottom: 0cm; line-height: normal;\"\u003e\u003cspan style=\"font-family: 'Times New Roman',serif; mso-fareast-font-family: 'Times New Roman'; mso-font-kerning: 0pt; mso-ligatures: none; mso-fareast-language: EN-GB;\"\u003e• \u003cb\u003eQT450 Steel Pressure Plate\u003c\/b\u003e – Superior thermal stability ensures consistent clamp load under extreme conditions.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp class=\"MsoNormal\" style=\"margin-bottom: 0cm; line-height: normal;\"\u003e\u003cspan style=\"font-family: 'Times New Roman',serif; mso-fareast-font-family: 'Times New Roman'; mso-font-kerning: 0pt; mso-ligatures: none; mso-fareast-language: EN-GB;\"\u003e• \u003cb\u003eMotorsport-Engineered Architecture\u003c\/b\u003e – Designed for aggressive launches, clutch kicks, and sustained high-RPM operation.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp class=\"MsoNormal\" style=\"mso-margin-top-alt: auto; mso-margin-bottom-alt: auto; line-height: normal; mso-outline-level: 2;\"\u003e\u003cb\u003e\u003cspan style=\"font-size: 18.0pt; font-family: 'Times New Roman',serif; mso-fareast-font-family: 'Times New Roman'; mso-font-kerning: 0pt; mso-ligatures: none; mso-fareast-language: EN-GB;\"\u003eIdeal for you if you:\u003c\/span\u003e\u003c\/b\u003e\u003c\/p\u003e\n\u003cp class=\"MsoNormal\" style=\"mso-margin-top-alt: auto; mso-margin-bottom-alt: auto; line-height: normal;\"\u003e\u003cspan style=\"font-family: 'Times New Roman',serif; mso-fareast-font-family: 'Times New Roman'; mso-font-kerning: 0pt; mso-ligatures: none; mso-fareast-language: EN-GB;\"\u003e• Compete in drifting, circuit racing, or time attack.\u003cbr\u003e• Operate a heavily modified, high-boost E36 or E46 build.\u003cbr\u003e• Prioritise ultra-fast rev response and instantaneous torque transfer.\u003cbr\u003e• Accept race-focused engagement characteristics in exchange for maximum performance.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp class=\"MsoNormal\" style=\"mso-margin-top-alt: auto; mso-margin-bottom-alt: auto; line-height: normal;\"\u003e\u003cspan style=\"font-family: 'Times New Roman',serif; mso-fareast-font-family: 'Times New Roman'; mso-font-kerning: 0pt; mso-ligatures: none; mso-fareast-language: EN-GB;\"\u003eThe Stage 4 Sport SMF kit is not a street compromise — it is a purpose-built motorsport solution engineered for rapid response, reduced inertia, and uncompromising torque control.\u003c\/span\u003e\u003c\/p\u003e","brand":"Performance Clutches","offers":[{"title":"Default Title","offer_id":56578619343226,"sku":"PC-3154-S4PF","price":720.0,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0709\/3652\/7131\/files\/PC-3154-S4PF.png?v=1779877659","url":"https:\/\/performclutch.com\/fr\/products\/bmw-e46-m3-clutch-smf-kit-stage-4-sport-pc-3154-s4pf","provider":"Performance Clutches","version":"1.0","type":"link"}