JE Pistons

JE Pistons Asymmetrical FSR Forged 9.0:1 Pistons 4B11T Mitsubishi EVO X

  • Sale
  • $566.99
  • Regular price $1,231.80


  • Crown requires no deburring or preparation
  • 2618 T6 high tensile forged aluminum
  • NEW ASYMMETRICAL FSR forging! State of the art asymmetrical skirt technology reduces friction and mass while providing a more rigid and durable platform (Skirt Style F).
  • In this environment, higher boost levels or heavy nitrous usage necessitate JE's wrought 2618 alloy.
  • FSR pistons include offset pins for quiet operation.
  • Dished pistons feature new Smooth Finished Crown process for excellent flame travel.
  • 1.0 x 1.2 x 2.8mm ring widths
  • .866 x 2.250 straight wall carbon steel wrist pin provided. Round style pistons use 2.350 length pins.
  • Pin fitting, rings and wire locks included