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


  • £599.05
    exc. VAT £499.21


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

You may also be interested in the SPEC BMW Clutch (335i & 335d) .

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 aluminum flywheel weighs 14lbs, and billet steel 22 lbs.


Steel or Aluminium? 

The aluminum 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 


Free UK Delivery

Free next day UK Delivery on stock items if ordered before 11am! We can also ship worldwide, simply contact us for a quote.



Lifetime warranty


Manufactured by



Part Number







SB53S-2 - 42cm x 42cm x 13.5cm



SB53S-2 - 9.2Kg