Standard Features Include:
  • Standard size (9.5 comp ratio)
  • Deep valve reliefs accommodate high lift camshafts
  • Larger valve reliefs for +1mm valve sizes
  • Custom skirt cam and barrel design
  • Accumulator grooves
  • High strength aluminum forgings
  • High performance rings
  • Fully CNC machined and balanced to +/- 1 gram; Wrist pins included at no additional cost
  • Double pin oilers force fed from oil ring groove
  • Pin lock grooves for easy lock removal
  • Pin fitting included

*All gram weights provided are approximate and for the bare piston with no hardware attached.

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Make Model Year
MINI COOPER JCW 2007 - 2014
MINI COOPER S 2007 - 2014