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.
You may also be interested in the SPEC BMW Clutch (335i & 335d).
Note: This SPEC designed flywheel cannot be fitted to an OEM design flywheel.
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 aluminium.
M Series
BMW 1M 3.0L N54 (2011 -2012)
1 Series
BMW E82/E88 135i 3.0L N55 (2011 - 2013)
BMW F20/F21 M135i 3.0L N55 (2012 - 2016)
2 Series
BMW F22/F23 M235i 3.0L N55 (2014-2019)
3 Series
BMW E90/E91/E92/E93 335i(x) 3.0L N55 (2011 - 2013)
BMW F30/F31 335i 3.0L N55 2012-2019
4 Series
BMW F32/F33/F36 435i(x) 3.0L N55 (2013 - 2017)
5 Series
BMW F10/F11 535i(x) N55 (2011 - 2017)
X Series
F25 X3 (2011 - 2017)
Z Series
BMW E89 Z4 35i (2011 - 2016)
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.
SB55S-2 (Steel)
SB55A-2 (Aluminium)
Manufactured by
SPEC