Fast, Free Shipping W/ Insurance On Orders Over $199
Mon-Fri 6am - 6pm
+1-888-627-3736 Speak To An Expert
Choose Your Car 
  • Tomei EJ25/EJ26 Forged Piston Set (Subaru WRX/STi) 1182997312 - Modern Automotive Performance
  • Tomei EJ25/EJ26 Forged Piston Set (Subaru WRX/STi) 1182997312


    MAPerformance

    Tomei EJ25/EJ26 Forged Piston Set

    PART# TOM 1182997312
    We Price Match!

    Contact us to ensure you're getting the right part for your car at the absolute best pricing on earth!

    Email - sales@maperformance.com
    Phone 1(888)627-3736



    $ 1,539.00   $ 1,710.00
    You Save 10% ($ 171.00)



    If ordered within hours and minutes
    This item can be delivered by ,
    Fits Your
    MAP Loyalty: Earn $ 30.78 Toward Next Purchase!

    The ellipse barrel shape profile was chosen from the advanced analysis of the analysis distribution of piston temperatures, material properties and the coefficient thermal expansion rates. This allowed our design to use much tighter piston clearances for maximum power range. This greatly reduces blow by gases, friction loss and no noise. This maximizes power and longevity of the piston. This is the advantage of Tomei's Pistons.

    • LOW FRICTION / BEST CLEARANCE
    • PROFILE DEISGNED FOR OPTIMIZED COMBUSTION
    • DURABLE AT APPROX 74g!

    BORE
    DIAMETER
    (Φ)

    PIN
    DIAMETER
    (Φ)

    PIN
    LENGTH
    (mm)

    RECESS

    COMPRESSION
    HEIGHT (mm)

    CROWN
    VOLUME (cc)

    PISTON
    WEIGHT (g)

    99.75

    23.0

    62

    YES

    30.7

    19.5

    380

     

    PISTON PIN
    WEIGHT (g)

    GROSS
    WEIGHT
    (g)

    TOP RING
    BxT (mm)

    SECOND RING
    B x T (mm)

    OIL RING
    B x T (mm)

    MATERIAL

    STOCK
    WEIGHT (g)

    123

    503

    1.2 x 3.6

    1.2 x 4.0

    2.0 x 3.0

    ALUMINUM

    577

    The ellipse barrel shape profile was chosen from the advanced analysis of the analysis distribution of piston temperatures, material properties and the coefficient thermal expansion rates. This allowed our design to use much tighter piston clearances for maximum power range. This greatly reduces blow by gases, friction loss and no noise. This maximizes power and longevity of the piston. This is the advantage of Tomei's Pistons.

    • LOW FRICTION / BEST CLEARANCE
    • PROFILE DEISGNED FOR OPTIMIZED COMBUSTION
    • DURABLE AT APPROX 74g!

    BORE
    DIAMETER
    (Φ)

    PIN
    DIAMETER
    (Φ)

    PIN
    LENGTH
    (mm)

    RECESS

    COMPRESSION
    HEIGHT (mm)

    CROWN
    VOLUME (cc)

    PISTON
    WEIGHT (g)

    99.75

    23.0

    62

    YES

    30.7

    19.5

    380

     

    PISTON PIN
    WEIGHT (g)

    GROSS
    WEIGHT
    (g)

    TOP RING
    BxT (mm)

    SECOND RING
    B x T (mm)

    OIL RING
    B x T (mm)

    MATERIAL

    STOCK
    WEIGHT (g)

    123

    503

    1.2 x 3.6

    1.2 x 4.0

    2.0 x 3.0

    ALUMINUM

    577

    Customer Reviews

    No reviews yet
    0%
    (0)
    0%
    (0)
    0%
    (0)
    0%
    (0)
    0%
    (0)

    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.

    We use cookies to offer a better browsing experience, analyze site traffic, personalize content, and serve targeted advertisements. Please review our privacy policy & cookies information page.  If you continue you consent to our privacy policy & use of cookies.Accept

    Hello!

    Unfortunately due to vendor restrictions we are unable to sell this brand within Australia or the UK. If you have any questions, feel like you received this message in error or would like suggestions on other brands please contact us here.

    Hello!

    Unfortunately due to vendor restrictions we are unable to sell this brand within Australia. If you have any questions, feel like you received this message in error or would like suggestions on other brands please contact us here.

    Hello!

    Unfortunately due to vendor restrictions we are unable to sell this brand within your country. If you have any questions, feel like you received this message in error or would like suggestions on other brands please contact us here.

    Hello!

    Unfortunately due to vendor restrictions we are unable to sell this brand within California. If you have any questions, feel like you received this message in error or would like suggestions on other brands please contact us here.