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SPEC BMW E82 E90 N54 N55 SPEC-Design Single Mass Flywheels (135i, 335i & 335d)


  • £599.00
    exc. VAT £499.17
  • 2 reviews


These kits feature a non-SAC mechanism pressure plate, which , deviating from the original design, provides a lighter rotating assembly, higher rpm capability and greater clamp load levels. Required for the install is a billet rebuildable flywheel that features a lightweight, low MOI design and infinite rebuildability. The billet aluminium flywheel weighs 14lbs, and billet steel 22 lbs.


You will also need the SPEC BMW Clutch (335i & 335d).

Note: This product cannot be fitted to an OEM design. Flywheels that can fit to an OEM design are found here.

Steel or Aluminium? 

The aluminium produced one of the highest wheel hp gains we have ever seen, 17 whp (on an otherwise unmodified car).


The steel produced around 10 whp. The steel dampens more of the gear resonance and , thus, is quieter at idle with the pedal out than the aluminum. 


Compatibility Check

To ensure the part(s) you have ordered fits your vehicle, we run a compatibility check prior to dispatch. We can do this either using your registration number(UK) or the last 7 digits of your VIN. Simply enter your car details prior to checkout. 



BMW 135i 3.0L (N54) 2007-2009 

BMW 135i 3.0L (N54/N55) 2009-2012

BMW 335i/335d 3.0L 2007-2009 

BMW 335i/335d 3.0L 2009-2012   



Lifetime warranty


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