{"product_id":"spec-bmw-n54-stage-3-clutch-for-mfactory-flywheel-135i-335i-335d","title":"SPEC Stage 3+ Sprung Hub Clutch Kit for BMW 135i\/335i (N54) \u0026 335d | Fits MFactory Single Mass Flywheel | 2007-2012 | 671 ft-lbs | SB533FS-NR","description":"\u003cdiv class=\"product__description rte\"\u003e\n  \u003ch2\u003eSPEC Stage 3+ Sprung Hub Clutch Kit for BMW 135i, 335i N54 and 335d. Fits MFactory Single Mass Flywheel. 2007 to 2012. 671 ft-lbs. SB533FS-NR\u003c\/h2\u003e\n\n  \u003cp\u003e\n    The go-to BMW N54 clutch upgrade for serious power and everyday drivability. The SPEC Stage 3+ sprung hub clutch kit SB533FS-NR is engineered to work specifically with the MFactory single mass flywheel on BMW 135i, 335i and 335d models from 2007 to 2012. If you are converting to an MFactory SMF, this sprung hub disc delivers the smooth engagement and control that rigid discs cannot, reducing harshness and transforming the way your tuned BMW drives on the road and performs on track.\n  \u003c\/p\u003e\n\n  \u003cp\u003e\n    Ideal for hybrid turbo and big turbo N54 builds, fast road cars, drag set-ups and track day projects, this performance clutch combines high torque holding with a street-friendly pedal and precise bite. At Nforcd we have fitted and used these SPEC kits ourselves, and our customers consistently report excellent engagement, pedal feel and dependable holding power.\n  \u003c\/p\u003e\n\n  \u003ch3\u003eKey features and benefits\u003c\/h3\u003e\n  \u003cul\u003e\n    \u003cli\u003eDesigned for use with the MFactory BMW single mass flywheel. Perfect for SMF conversions on 135i, 335i N54 and 335d\u003c\/li\u003e\n    \u003cli\u003eSprung hub clutch disc for smoother engagement and better drivability than a rigid disc on a solid flywheel\u003c\/li\u003e\n    \u003cli\u003eHigh torque performance clutch for BMW N54 and 335d applications. Proven to hold serious power\u003c\/li\u003e\n    \u003cli\u003eExcellent choice for BMW 135i clutch upgrade, BMW 335i clutch upgrade and BMW 335d clutch upgrade\u003c\/li\u003e\n    \u003cli\u003eStrong street manners with the bite you want for fast road, drag and track day use\u003c\/li\u003e\n  \u003c\/ul\u003e\n\n  \u003ch3\u003eTorque rating\u003c\/h3\u003e\n  \u003cp\u003e\n    When fitted with a new MFactory flywheel:\n    \u003cbr\u003e\n    \u003cstrong\u003eStage 3+ 671 ft-lbs\u003c\/strong\u003e\n  \u003c\/p\u003e\n\n  \u003ch3\u003eVehicle compatibility\u003c\/h3\u003e\n  \u003cul\u003e\n    \u003cli\u003eBMW 135i 3.0L 2007 to 2012\u003c\/li\u003e\n    \u003cli\u003eBMW 335i 3.0L 2007 to 2012\u003c\/li\u003e\n    \u003cli\u003eBMW 335d 3.0L 2007 to 2012\u003c\/li\u003e\n  \u003c\/ul\u003e\n\n  \u003ch3\u003eWhy choose this SPEC Stage 3+ for your MFactory flywheel\u003c\/h3\u003e\n  \u003cp\u003e\n    Running a solid MFactory flywheel with a rigid disc removes dampening and makes engagement abrupt. The SPEC Stage 3+ sprung hub disc adds the compliance needed for smoother take-up and better control. This is the smart BMW N54 clutch upgrade for drivers who want a powerful, streetable solution that handles big torque without turning every pull-away into an on off switch.\n  \u003c\/p\u003e\n\n  \u003ch3\u003eFitting and support\u003c\/h3\u003e\n  \u003cp\u003e\n    Professional installation recommended. For fitting at Nforcd in Warwickshire, request a quote at \u003ca href=\"mailto:Sales@nforcd.com\"\u003eSales@nforcd.com\u003c\/a\u003e.\n  \u003c\/p\u003e\n\n  \u003ch3\u003eCompatibility check\u003c\/h3\u003e\n  \u003cp\u003e\n    We will verify fitment before dispatch. Please provide your UK registration number or the last 7 digits of your VIN at checkout to ensure the correct BMW clutch kit for your car.\n  \u003c\/p\u003e\n\n  \u003ch3\u003ePart number\u003c\/h3\u003e\n  \u003cp\u003e\u003cstrong\u003eSB533FS-NR\u003c\/strong\u003e\u003c\/p\u003e\n\n  \u003ch3\u003eMore information\u003c\/h3\u003e\n  \u003cp\u003e\n    Manufacturer SPEC\n    \u003cbr\u003e\n    Warranty Lifetime warranty\n  \u003c\/p\u003e\n\n  \u003ch3\u003ePopular search terms\u003c\/h3\u003e\n  \u003cp\u003e\n    BMW N54 clutch, N54 clutch upgrade, BMW 135i clutch, BMW 335i clutch, BMW 335d clutch, SPEC Stage 3+ clutch kit, SPEC Stage 3+ BMW, SPEC SB533FS-NR, sprung hub clutch BMW, performance clutch BMW N54, high torque clutch 671 ft-lbs, MFactory flywheel clutch, MFactory single mass flywheel clutch, single mass flywheel conversion BMW, uprated clutch UK, BMW 135i clutch kit, BMW 335i clutch kit, BMW 335d clutch kit, BMW E82 clutch, BMW E92 clutch, BMW N54 performance parts, tuned N54 clutch, hybrid turbo N54 clutch, big turbo N54 clutch, fast road clutch BMW, track day clutch BMW, drag racing clutch BMW.\n  \u003c\/p\u003e\n\u003c\/div\u003e","brand":"SPEC","offers":[{"title":"Stage 3+","offer_id":42565744656572,"sku":null,"price":930.05,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0552\/9465\/6700\/products\/SPEC_E90_E92_BMW_Clutches_335i_335d_1946x_490112e7-2cee-4e64-a3d0-8d1ee2a23b2c.jpg?v=1680602369","url":"https:\/\/www.nforcd.com\/products\/spec-bmw-n54-stage-3-clutch-for-mfactory-flywheel-135i-335i-335d","provider":"Nforcd","version":"1.0","type":"link"}