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Wiseco Piston Set 100mm Bore 8.9:1 Compression Ratio - 06-14 WRX / 04+ STI

Dedicated 2618 alloy forgings, offset wrist pins, Nitrided/Napier Steel rings, skirt coatings, complex dish and dome designs, special skirt profiles, and other features insure longevity and power with boosted and nitrous engines. 


  • 8.9:1 Compression Ratio
  • Bore (in):3.937 in.
  • Bore (mm):100.000mm
  • Piston Style. . . Show More >

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