2021 Subaru Wrx Motor Builds Upgrades

    WRX Upgrades by WRX Experts. 

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    42 Results

    IAG 1150 2.5L Subaru Short Block - Subaru Models (Inc. 2002-2014 Subaru WRX / 2004-2021 STI / 2004-2013 Forester)

    IAG-ENG-S115

    IAG 1150 2.5L Subaru Short Block - Subaru Models (Inc. 2002-2014 Subaru WRX / 2004-2021 STI / 2004-2013 Forester)

    $9,499.99
    PERRIN Lightweight Crank Pulley for FA/FB Engines with Large Hub (Black) - Subaru Models (Inc. 2015-2024 Subaru WRX / 2015-2021 STI / 2014-2024 Forester / 2013-2024 BRZ / 2013-2016 Scion FR-S / 2022-2024 Toyota GR86)

    25 In Stock

    PSP-ENG-104BK

    PERRIN Lightweight Crank Pulley for FA/FB Engines with Large Hub (Black) - Subaru Models (Inc. 2015-2024 Subaru WRX / 2015-2021 STI / 2014-2024 Forester / 2013-2024 BRZ / 2013-2016 Scion FR-S / 2022-2024 Toyota GR86)

    $183.60
    IAG 600 Street Cylinder Heads Package (Includes Kelford EZ Cams, Cam Towers, Lifters & Rockers) - 2015-2021 Subaru WRX / 2015-2016 STI

    IAG-ENG-H600L

    IAG 600 Street Cylinder Heads Package (Includes Kelford EZ Cams, Cam Towers, Lifters & Rockers) - 2015-2021 Subaru WRX / 2015-2016 STI

    $5,999.99
    Dress Up Bolts Stage 2 Titanium Hardware Engine Bay Kit (Purple) - 2015-2021 Subaru WRX / STI

    SUB-015-TI-PRP

    Dress Up Bolts Stage 2 Titanium Hardware Engine Bay Kit (Purple) - 2015-2021 Subaru WRX / STI

    $430.64
    PERRIN Lightweight Crank Pulley (Black) - Subaru Models (Inc. 2012-2024 Subaru WRX / 2011-2024 Forester / 2019-2024 Ascent / 2012-2024 Impreza / 2013-2024 BRZ / Legacy / Outback / Crosstrek / 2013-2016 Scion FR-S / 2017-2020 Toyota 86 / 2022-2024 GR86)

    PSP-ENG-101BK

    PERRIN Lightweight Crank Pulley (Black) - Subaru Models (Inc. 2012-2024 Subaru WRX / 2011-2024 Forester / 2019-2024 Ascent / 2012-2024 Impreza / 2013-2024 BRZ / Legacy / Outback / Crosstrek / 2013-2016 Scion FR-S / 2017-2020 Toyota 86 / 2022-2024 GR86)

    $125.00
    IAG 800 CNC Pocket Ported Competition Cylinder Heads Package (Does NOT Include Kelford A "272" Cams, Cam Towers, Lifters & Rockers) - 2015-2021 Subaru WRX / 2015-2016 STI

    IAG-ENG-H800E

    IAG 800 CNC Pocket Ported Competition Cylinder Heads Package (Does NOT Include Kelford A "272" Cams, Cam Towers, Lifters & Rockers) - 2015-2021 Subaru WRX / 2015-2016 STI

    $4,249.99
    GrimmSpeed Lightweight Crank Pulley Hub For use w/GrimmSpeed Crank Pulley - 2019-2021 Subaru WRX

    11 In Stock

    095034

    GrimmSpeed Lightweight Crank Pulley Hub For use w/GrimmSpeed Crank Pulley - 2019-2021 Subaru WRX

    $53.00
    Dress Up Bolts Stage 2 Titanium Hardware Engine Bay Kit (Black) - 2015-2021 Subaru WRX / STI

    SUB-015-TI-BLK

    Dress Up Bolts Stage 2 Titanium Hardware Engine Bay Kit (Black) - 2015-2021 Subaru WRX / STI

    $430.64
    IAG Performance 750 Closed Deck Includes: Case Halves - Subaru Models (Inc. 2002-2014 Subaru WRX / 2004-2021 STI / 2004-2013 Forester)

    2 In Stock

    IAG-ENG-S750

    IAG Performance 750 Closed Deck Includes: Case Halves - Subaru Models (Inc. 2002-2014 Subaru WRX / 2004-2021 STI / 2004-2013 Forester)

    $5,499.99
    PERRIN Lightweight Crank Pulley for FA/FB Engines with Large Hub - Subaru Models (Inc. 2015-2024 Subaru WRX / 2015-2021 STI / 2014-2024 Forester / 2013-2024 BRZ / 2013-2016 Scion FR-S / 2022-2024 Toyota GR86)

    PSP-ENG-104BL

    PERRIN Lightweight Crank Pulley for FA/FB Engines with Large Hub - Subaru Models (Inc. 2015-2024 Subaru WRX / 2015-2021 STI / 2014-2024 Forester / 2013-2024 BRZ / 2013-2016 Scion FR-S / 2022-2024 Toyota GR86)

    $183.60
    PERRIN Alternator Pulley (Red) - 2015-2024 Subaru WRX

    PSP-ENG-121RD

    PERRIN Alternator Pulley (Red) - 2015-2024 Subaru WRX

    $51.85
    Killer B Motorsport Coolant Breather Fitting Assembly - 2015-2021 Subaru WRX

    DBFAV2

    Killer B Motorsport Coolant Breather Fitting Assembly - 2015-2021 Subaru WRX

    $164.00
    PERRIN Lightweight Water Pump Pulley (Black) - 2015-2024 Subaru WRX / 2014-2024 Forester / 2018-2024 Crosstrek / 2020-2024 Outback / Legacy / 2019-2024 Ascent / 2022-2024 BRZ / Toyota GR86

    9 In Stock

    PSP-ENG-111BK

    PERRIN Lightweight Water Pump Pulley (Black) - 2015-2024 Subaru WRX / 2014-2024 Forester / 2018-2024 Crosstrek / 2020-2024 Outback / Legacy / 2019-2024 Ascent / 2022-2024 BRZ / Toyota GR86

    $104.60
    IAG Wrist Pin / Cover Seal Kit for Subaru EJ25 Short Blocks - 2010-2021 Subaru WRX / STI / 2008-2014 Forester / Legacy / Outback / 2002-2014 Impreza

    1 In Stock

    IAG-ENG-1720

    IAG Wrist Pin / Cover Seal Kit for Subaru EJ25 Short Blocks - 2010-2021 Subaru WRX / STI / 2008-2014 Forester / Legacy / Outback / 2002-2014 Impreza

    $149.99
    Dress Up Bolts Stage 2 Titanium Hardware Engine Bay Kit (Blue) - 2015-2021 Subaru WRX / STI

    SUB-015-TI-BLU

    Dress Up Bolts Stage 2 Titanium Hardware Engine Bay Kit (Blue) - 2015-2021 Subaru WRX / STI

    $430.64
    Dress Up Bolts Titanium Hardware Trunk Kit (Gold) - 2015-2021 Subaru WRX / STI

    2 In Stock

    SUB-019-TI-GLD

    Dress Up Bolts Titanium Hardware Trunk Kit (Gold) - 2015-2021 Subaru WRX / STI

    $59.39
    IAG Performance 550 Short Block Includes: Case Halves - Subaru Models (Inc. 2002-2014 Subaru WRX / 2004-2021 STI / 2004-2013 Forester)

    6 In Stock

    IAG-ENG-S550

    IAG Performance 550 Short Block Includes: Case Halves - Subaru Models (Inc. 2002-2014 Subaru WRX / 2004-2021 STI / 2004-2013 Forester)

    $4,799.99
    Dress Up Bolts Titanium Hardware Engine Kit for FA20F Engine (Blue) - 2015-2021 Subaru WRX / 2014-2018 Forester XT

    SUB-010-TI-BLU

    Dress Up Bolts Titanium Hardware Engine Kit for FA20F Engine (Blue) - 2015-2021 Subaru WRX / 2014-2018 Forester XT

    $44.54
    IAG 600 Street Cylinder Heads Package (Does NOT Include Kelford EZ Cams, Cam Towers, Lifters & Rockers) - 2015-2021 Subaru WRX / 2015-2016 STI

    IAG-ENG-H600E

    IAG 600 Street Cylinder Heads Package (Does NOT Include Kelford EZ Cams, Cam Towers, Lifters & Rockers) - 2015-2021 Subaru WRX / 2015-2016 STI

    $3,199.99
    IAG 600 FA20 DIT Subaru Short Block - 2015-2021 Subaru WRX / 2014-2018 Forester

    IAG-ENG-S600

    IAG 600 FA20 DIT Subaru Short Block - 2015-2021 Subaru WRX / 2014-2018 Forester

    5.0(1)
    $6,119.99

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