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Wiseco K598M995 - Pistons and Rings for Subaru WRX STi 2.5L EJ257, -19cc Dish, 99.5mm Bore

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Price: $727.06
Manufacturer: Wiseco
Part No.: K598M995


  Part Number  K598M995
  Bore   99.5mm / 3.917" 
  Stroke   79mm / 3.110"
  Rod Length  130.5mm / 5.137" 
  Compression Height
 30.7mm / 1.209" 
  Dish Volume   -19.0cc Dish 
  Wrist Pin Diameter   23mm / .9055" 
  Compression Ratio   8.9:1
  Ring Stack   1.0mm x 1.2mm x 2.8mm

This Piston Kit fits all 2004+ WRX STi 2.5L EJ257 Engines. These Pistons feature Wiseco's ArmorGlide® Skirt Coating for reduced friction. Included in this kit are .200" Wall Wrist Pins and a Matching Piston Ring Set. The Piston Rings feature a Gas Nitrided Top Ring that works very well with Turbocharged Engines and a Napier 2nd Ring for Excellent Oil Control. We recommend these Pistons and Rings for all WRX STi EJ257 Engines. When it comes down to Quality and Price, Wiseco offers an excellent product!
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