SPEC Stage 3+ Sprung Hub Clutch Kit for BMW 135i/335i (N54) & 335d | Fits MFactory Single Mass Flywheel | 2007-2012 | 671 ft-lbs | SB533FS-NR

SPEC Stage 3+ Sprung Hub Clutch Kit for BMW 135i/335i (N54) & 335d | Fits MFactory Single Mass Flywheel | 2007-2012 | 671 ft-lbs | SB533FS-NR

£930.05
£930.05
£979.00
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SPEC 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

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.

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.

Key features and benefits

  • Designed for use with the MFactory BMW single mass flywheel. Perfect for SMF conversions on 135i, 335i N54 and 335d
  • Sprung hub clutch disc for smoother engagement and better drivability than a rigid disc on a solid flywheel
  • High torque performance clutch for BMW N54 and 335d applications. Proven to hold serious power
  • Excellent choice for BMW 135i clutch upgrade, BMW 335i clutch upgrade and BMW 335d clutch upgrade
  • Strong street manners with the bite you want for fast road, drag and track day use

Torque rating

When fitted with a new MFactory flywheel:
Stage 3+ 671 ft-lbs

Vehicle compatibility

  • BMW 135i 3.0L 2007 to 2012
  • BMW 335i 3.0L 2007 to 2012
  • BMW 335d 3.0L 2007 to 2012

Why choose this SPEC Stage 3+ for your MFactory flywheel

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.

Fitting and support

Professional installation recommended. For fitting at Nforcd in Warwickshire, request a quote at Sales@nforcd.com.

Compatibility check

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.

Part number

SB533FS-NR

More information

Manufacturer SPEC
Warranty Lifetime warranty

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