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CP Piston Set 92mm Bore 8.5:1 CR - Subaru WRX 2002-2005
CP Piston Set 92mm Bore 8.5:1 CR - Subaru WRX 2002-2005
CP Piston Set 92mm Bore 8.5:1 CR - Subaru WRX 2002-2005
CP Piston Set 92mm Bore 8.5:1 CR - Subaru WRX 2002-2005
CP Piston Set 92mm Bore 8.5:1 CR - Subaru WRX 2002-2005
CP Piston Set 92mm Bore 8.5:1 CR - Subaru WRX 2002-2005
CP Piston Set 92mm Bore 8.5:1 CR - Subaru WRX 2002-2005
CP Piston Set 92mm Bore 8.5:1 CR - Subaru WRX 2002-2005
CP Piston Set 92mm Bore 8.5:1 CR - Subaru WRX 2002-2005

CP Piston Set 92mm Bore 8.5:1 CR

Subaru WRX 2002-2005

Was: $858.90
$755.83
You save:
12%
($103.07)
msrp: $1,018.00

Product will ship from manufacturer, average time to ship: 5 business days
You will earn Reward Points with this Purchase.
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Features & Product Details

RallySport Direct proudly carries a great selection of CP Pistons for those of you who need a strong and durable piston in a high-horsepower build. 

Here, you are looking at the CP Piston Set. These pistons will come provided with rings and wrist pins and are designed to sustain the perils of high horsepower and high boost builds.


FEATURES:

  • 92mm bore
  • 8.5:1 Compression ratio
  • Deep valve relief depth accommodates high lift camshaft
  • Made 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 oil ring
  • Pick lock grooves for easy lock removal
  • Pin fitting included
  • Specifications

    Brand: CP
    Anti-Friction Coating: No
    Bore Size: 92mm
    Compression Ratio: 8.5:1
    Head Alteration Required: No
    Machining Required: No
    Material: Forged
    Piston Rings Included: Yes
    QTY: 4
    Wrist Pin Clips: No
    Wrist Pins Included: Yes
    Mfgr. Warranty: No Warranty
    Condition: New Product
    Return Policy:
    Standard

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    QUESTIONS & ANSWERS

    • Q: Stroker pistons?   Fox 2 years ago

      Would these pistons work with a 2.5l crank in a 2.0 block?
      • 0 of 0 people found the following answer helpful

        A:  CP does not specify if this will be compatible with the STI crank. EJ20 pistons and EJ25 pistons usually have the piston pin in a slightly different location. so not 100% if this will work.

        Lane H. @ RallySport Direct 1 year ago  
          
        Was this answer helpful?
    • Q: boost  SLUGGO 19779 years ago

      how much boost could they handle
      • 0 of 0 people found the following answer helpful

        A:  There is no pressure or power rating on pistons. Reason is that they will fail as a result of detonation before cylinder pressures become an issue. And if cylinder pressures are an issue, your cylinder walls will fail first.

        Kirill C. @ RallySport Direct 9 years ago  
          
        Was this answer helpful?
    • Q: why   warlord_x699 years ago

      Hi guys why is it that a lot of piston manufacturers make these piston for wrx 02 8.5:1 instead of the stock 8.3:1c/r?? Every piston i find is 8.5:1 or 8.0:1
      • 0 of 0 people found the following answer helpful

        A:  Much of it will come down to the piston dome design and what each manufacture thinks is the ideal design. As to why the change in CR, that really is not a question with a answer and much of that will depend on the manufactures ideology of what is the best suited CR in their minds.

        Kirill C. @ RallySport Direct 9 years ago  
          
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    • Q: Compression Ratio  Drew Anthony10 years ago

      Since these pistons are at a slightly higher compression ration than stock, would this interfere with an Accessport V39 Tune at 91 Octane at all?