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  • Manley 04+ WRX STi (EJ257) Size (STD) Stroke (79mm) Bore (99.50mm Grade B) SINGLE Piston w/ Rings - Modern Automotive Performance
  • Manley Single Piston with Rings / 79mm Stroke 99.50mm Bore | Subaru EJ257 (612000CB-1)

    MAP price match guarantee Unbeatable Price Guarantee

    Manley Performance

    Manley Single Piston with Rings / 79mm Stroke 99.50mm Bore | Subaru EJ257

    PART# MAN 612000CB-1
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    ( Honestly, if you find a better price we'll match it. )

    Give us a call to get the best prices and parts for your build. Or, just call us with a cool racing story...either way we're here.

    Email - sales@maperformance.com

    Phone 1-888-627-3736



    $ 141.79   $ 161.70
    You Save 12% ($ 19.91)

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    EJ25 Platinum Series Lightweight Piston

    Manley pistons are machined of high strength 2618 material. Each design is lightweight yet robust enough to deliver long service life. Offset wrist pin design is utilized for quiet start-ups. Perfect ring groove to skirt squareness is achieved through our unique "one fixturing" manufacturing method that assures maximum horsepower. All pistons come with moly coated skirts. Round wire locks, premium chrome moly wrist pins, and premium steel top ring sets from Total Seal are included with every kit at no additional charge. 9310 alloy upgraded wrist pins are available. Recommended clearance: .003" for mildly boosted and .0035" for highly boosted measured .850" (79/83mm Strokes) and 1.100" (75mm Stroke) from the bottom of the oil ring groove.

    Manley Subaru EJ257 pistons now include Napier style second rings and higher tension oil rings (by Total Seal) for superior oil control.

    Specifications

    • Bore: 99.50mm Grade B
    • Oversize: STD
    • Rod Length: 5.137"
    • Stroke: 79mm
    • Comp. Distance: 1.209"
    • Dome Volume: -22cc
    • Cylinder Head: 51cc
    • Comp. Ratio: 8.5
    • Piston Type: Dish
    • Piston Weight: 395g
    • Included Ring Set: 46995DT-1

    Applications

    • 2004-2020 Subaru STI
    • Subaru EJ257

    What's In The Box?

    • (1) Piston w/ Rings

    Warranty

    • Manufacturer Standard Warranty

      EJ25 Platinum Series Lightweight Piston

      Manley pistons are machined of high strength 2618 material. Each design is lightweight yet robust enough to deliver long service life. Offset wrist pin design is utilized for quiet start-ups. Perfect ring groove to skirt squareness is achieved through our unique "one fixturing" manufacturing method that assures maximum horsepower. All pistons come with moly coated skirts. Round wire locks, premium chrome moly wrist pins, and premium steel top ring sets from Total Seal are included with every kit at no additional charge. 9310 alloy upgraded wrist pins are available. Recommended clearance: .003" for mildly boosted and .0035" for highly boosted measured .850" (79/83mm Strokes) and 1.100" (75mm Stroke) from the bottom of the oil ring groove.

      Manley Subaru EJ257 pistons now include Napier style second rings and higher tension oil rings (by Total Seal) for superior oil control.

      Specifications

      • Bore: 99.50mm Grade B
      • Oversize: STD
      • Rod Length: 5.137"
      • Stroke: 79mm
      • Comp. Distance: 1.209"
      • Dome Volume: -22cc
      • Cylinder Head: 51cc
      • Comp. Ratio: 8.5
      • Piston Type: Dish
      • Piston Weight: 395g
      • Included Ring Set: 46995DT-1

      Applications

      • 2004-2020 Subaru STI
      • Subaru EJ257

      What's In The Box?

      • (1) Piston w/ Rings

      Warranty

      • Manufacturer Standard Warranty

        Customer Reviews

        Based on 3 reviews
        100%
        (3)
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        (0)
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        J
        J.S.
        Piston rings are different from grade A
        J
        J.V.
        Excellent and professional
        N
        N.P.
        So far so good

        MAP Limited Lifetime Warranty

        1.) All MAPerformance in-house fabricated parts include a Limited Lifetime Warranty for the Original Purchaser. This warranty only applies to the original purchaser and is non-transferrable. If the product fails it would need to be determined by MAPerformance that it is due to manufacturing defects in materials or workmanship.

        2.) This does not cover normal wear and tear. Improper use, modification, or abuse voids this warranty. MAPerformance will not be held responsible for additional costs due to the failure of a product (cost of sale, towing, labor, etc.). Warranty claims must be submitted to MAPerformance for review.

        3.) You must create a support ticket to acquire your return authorization number prior to returning the product.

        4.) Warranty claims will not be honored if the product was not purchased through an approved dealer.

        For warranty evaluation please create a support ticket via this form here.

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