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  • Manley Performance [04-12 WRX/STI] Platinum Series EJ257 Piston Set with Rings - 99.5 mm Standard Bore, 8.5:1 Dish - JDMusclePistons and Sleevesman612000C-4
  • Manley Performance [04-12 WRX/STI] Platinum Series EJ257 Piston Set with Rings - 99.5 mm Standard Bore, 8.5:1 Dish - JDMusclePistons and Sleevesman612000C-4
  • Manley Performance [04-12 WRX/STI] Platinum Series EJ257 Piston Set with Rings - 99.5 mm Standard Bore, 8.5:1 Dish - JDMusclePistons and Sleevesman612000C-4
  • Manley Performance [04-12 WRX/STI] Platinum Series EJ257 Piston Set with Rings - 99.5 mm Standard Bore, 8.5:1 Dish - JDMusclePistons and Sleevesman612000C-4
  • Manley Performance [04-12 WRX/STI] Platinum Series EJ257 Piston Set with Rings - 99.5 mm Standard Bore, 8.5:1 Dish - JDMusclePistons and Sleevesman612000C-4
  • Manley Performance [04-12 WRX/STI] Platinum Series EJ257 Piston Set with Rings - 99.5 mm Standard Bore, 8.5:1 Dish - JDMusclePistons and Sleevesman612000C-4
  • Manley Performance [04-12 WRX/STI] Platinum Series EJ257 Piston Set with Rings - 99.5 mm Standard Bore, 8.5:1 Dish - JDMusclePistons and Sleevesman612000C-4
  • Manley Performance [04-12 WRX/STI] Platinum Series EJ257 Piston Set with Rings - 99.5 mm Standard Bore, 8.5:1 Dish - JDMusclePistons and Sleevesman612000C-4
  • Manley Performance [04-12 WRX/STI] Platinum Series EJ257 Piston Set with Rings - 99.5 mm Standard Bore, 8.5:1 Dish - JDMusclePistons and Sleevesman612000C-4
  • Manley Performance [04-12 WRX/STI] Platinum Series EJ257 Piston Set with Rings - 99.5 mm Standard Bore, 8.5:1 Dish - JDMusclePistons and Sleevesman612000C-4

Manley Performance

Manley Performance

Platinum Series EJ257 Piston Set with Rings - 99.5 mm Standard Bore, 8.5:1 Dish

Fits: 04-12 WRX/STI

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Auto Parts Store of the Year 2026

Manley Performance Platinum Series EJ257 Piston Set with Rings - 99.5 mm Standard Bore, 8.5:1 Dish
Fits: 04-12 WRX/STI

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Fitment

Please Note: 2004-2012 Subaru WRX / WRX STI (EJ257) - Manley Performance Platinum Series piston set with rings; 99.5 mm standard bore, 8.5:1 dish, 2618 alloy forging. Professional engine builder grade.
  • 2004–2014 Subaru | WRX STI
  • 2004–2014 Subaru | WRX

Description

Our signature Platinum Series pistons feature 2618 alloy forgings, proven cam and barrel skirt profiles, tool steel wrist pins, and moly skirt coatings — trusted by professional engine builders and tuners who rely on Manley pistons for superior performance and durability. This EJ257 piston set with rings is for 2004-2012 Subaru WRX / WRX STI applications: 99.5 mm standard bore with an 8.5:1 dish.

  • Platinum Series EJ257 piston set with rings
  • For 2004-2012 Subaru WRX / WRX STI
  • 99.5 mm standard bore, 8.5:1 dish
  • 2618 alloy forging
  • Tool steel wrist pins
  • Moly skirt coating

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