2004 Subaru WRX STI WRX STI Upgrades by WRX STI Experts.

    2004 was an exciting year for Subaru as they finally released a Subaru WRX STI for US markets. Quickly gaining notoriety in the mid 90’s to early 2000’s, the Subaru STI brought more attention to World Rally Racing. For those of us older folk when digital cable was evolving, we could watch WRC races on SpeedVision while reading about the success of the WRX in magazines such as Sport compact Car and Turbo Magazine. Following the major success of the equally established Mitsubishi Evolution in 2003, Subaru made the right move by debuting the STI shortly after.

    With a unique blue interior with Alcantara seats, the 2004 STI had an amazing drivers seating position, a 2.5-liter flagship EJ25 that made nearly 300 HP, and it was mated to a very strong 6-speed gearbox. Subaru’s all-wheel-drive technology quickly gave the STI the upper-hand in competition for weekend autocrosses and track days. COBB Tuning was very busy at the time developing their highly esteemed Accessport to smooth out other popular modifications such as the GrimmSpeed Intake, Tomei Expreme Ti Cat-Back Exhaust, and GrimmSpeed Boost Control Solenoid. But it was quickly discovered that the STI really benefited from a set of Whiteline 24mm Front and Rear Sway Bar Kit. 20 years after the release of the 2004 STI, it remains as one of the best rally-inspired all-wheel-drive turbocharged sedans that continues to dominate the used car market.

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    903 Results

    ACT Heavy Duty Performance Street Disc Clutch Kit - 2002-2005 Subaru WRX

    8 In Stock

    SB9-HDSS

    ACT Heavy Duty Performance Street Disc Clutch Kit - 2002-2005 Subaru WRX

    $741.00
    Rays Gram Lights 57DR Gun Blue II 17x9 +38 5x100 (Sold As Pair) - 2013-2024 Subaru BRZ / Scion FR-S / Toyota GR86 / 2014-2018 Subaru Forester

    WGIQ38DG2

    Rays Gram Lights 57DR Gun Blue II 17x9 +38 5x100 (Sold As Pair) - 2013-2024 Subaru BRZ / Scion FR-S / Toyota GR86 / 2014-2018 Subaru Forester

    $1,077.31
    COBB Tuning Titanium Cat-Back Exhaust - 2002-2007 Subaru WRX / 2004-2007 STI

    512140

    COBB Tuning Titanium Cat-Back Exhaust - 2002-2007 Subaru WRX / 2004-2007 STI

    $1,530.00
    Rays Gram Lights 57CR Gloss Black 17x9 +38 5x100 (Sold As Pair) - 2013-2024 Subaru BRZ / Scion FR-S / Toyota GR86 / 2014-2018 Subaru Forester

    WGCRQ38DGX

    Rays Gram Lights 57CR Gloss Black 17x9 +38 5x100 (Sold As Pair) - 2013-2024 Subaru BRZ / Scion FR-S / Toyota GR86 / 2014-2018 Subaru Forester

    $1,145.56
    IAG Performance V4 Air Oil Separator AOS - Neon Yellow - 2004-2007 Subaru STI / 2006-2007 WRX

    IAG-ENG-7185NY

    IAG Performance V4 Air Oil Separator AOS - Neon Yellow - 2004-2007 Subaru STI / 2006-2007 WRX

    $424.99
    Manley Performance Turbo Tuff Series Crankshaft 79mm Subaru EJ25 Models  - Subaru Models (inc. 2006-2014 Subaru WRX / 2004-2021 Subaru STI)

    1 In Stock

    190040B

    Manley Performance Turbo Tuff Series Crankshaft 79mm Subaru EJ25 Models - Subaru Models (inc. 2006-2014 Subaru WRX / 2004-2021 Subaru STI)

    $1,954.24
    Tein EnduraPro Plus Single Damper Rear Left - 2002-2007 Subaru WRX

    2 In Stock

    VSS55-B1MS2-L

    Tein EnduraPro Plus Single Damper Rear Left - 2002-2007 Subaru WRX

    $145.00
    Competition Clutch Stage 3 Segmented Ceramic Clutch Kit - 2015-2021 Subaru STI / 2004-2014 Impreza

    11 In Stock

    15030-2600

    Competition Clutch Stage 3 Segmented Ceramic Clutch Kit - 2015-2021 Subaru STI / 2004-2014 Impreza

    $720.00
    Rays Gram Lights 57CR Ceramic Pearl 17x9 +38 5x100 (Sold As Pair) - 2013-2024 Subaru BRZ / Scion FR-S / Toyota GR86 / 2014-2018 Subaru Forester

    WGCRQ38DCPP

    Rays Gram Lights 57CR Ceramic Pearl 17x9 +38 5x100 (Sold As Pair) - 2013-2024 Subaru BRZ / Scion FR-S / Toyota GR86 / 2014-2018 Subaru Forester

    $1,221.53
    Enkei Raijin Matte Black 18x8 +45 5x100 (Single Wheel) - 2013-2024 Subaru BRZ / Scion FR-S / Toyota GR86 / 2014-2018 Subaru Forester

    8 In Stock

    467-880-8045BK

    Enkei Raijin Matte Black 18x8 +45 5x100 (Single Wheel) - 2013-2024 Subaru BRZ / Scion FR-S / Toyota GR86 / 2014-2018 Subaru Forester

    $324.00
    Torque Solution Turbo Inlet Hose Red - 2002-2007 Subaru WRX / 2004-2021 STI / 2005-2009 Legacy GT

    3 In Stock

    TS-SU-463RD

    Torque Solution Turbo Inlet Hose Red - 2002-2007 Subaru WRX / 2004-2021 STI / 2005-2009 Legacy GT

    $277.77
    XClutch Chromoly Lightweight Flywheel - 2004-2021 Subaru STI

    6 In Stock

    XFSU003CL

    XClutch Chromoly Lightweight Flywheel - 2004-2021 Subaru STI

    $467.32
    Rays Gram Lights 57CR Glass Black 17x9 +38 5x100 (Sold As Pair) - 2013-2024 Subaru BRZ / Scion FR-S / Toyota GR86 / 2014-2018 Subaru Forester

    WGCRQ38DGBP

    Rays Gram Lights 57CR Glass Black 17x9 +38 5x100 (Sold As Pair) - 2013-2024 Subaru BRZ / Scion FR-S / Toyota GR86 / 2014-2018 Subaru Forester

    $1,145.56
    Turbosmart Kompact Dual Port Blow Off Valve - 2015-2021 Subaru STI

    3 In Stock

    TS-0203-1015

    Turbosmart Kompact Dual Port Blow Off Valve - 2015-2021 Subaru STI

    4.0(1)
    $246.95
    FactionFab Sway Bar 22mm Front - 2002-2007 Subaru WRX / STI Sedan

    1.10232.1

    FactionFab Sway Bar 22mm Front - 2002-2007 Subaru WRX / STI Sedan

    $250.00
    PERRIN Oil Cooler Kit - 2002-2024 Subaru WRX / 2004-2021 STI

    14 In Stock

    PSP-OIL-111

    PERRIN Oil Cooler Kit - 2002-2024 Subaru WRX / 2004-2021 STI

    $906.10
    NGK Iridium Spark Plugs One Step Colder 2667 - 2002-2005 Subaru WRX

    BKR7EIX-GRP

    NGK Iridium Spark Plugs One Step Colder 2667 - 2002-2005 Subaru WRX

    $47.86
    ETS Titanium Intake Kit Speed Density - 2004-2007 Subaru WRX / STI

    ETS Titanium Intake Kit Speed Density - 2004-2007 Subaru WRX / STI

    $495.00
    PERRIN Front Strut Tower Brace (Neon Yellow) - 2002-2024 Subaru WRX / 2004-2021 STI

    27 In Stock

    PSP-SUS-056NY

    PERRIN Front Strut Tower Brace (Neon Yellow) - 2002-2024 Subaru WRX / 2004-2021 STI

    $283.10
    FactionFab V2 Dual Drilled 5x100/114 Slotted Rear Rotor - 2004-2007 Subaru STI

    1.10291.1

    FactionFab V2 Dual Drilled 5x100/114 Slotted Rear Rotor - 2004-2007 Subaru STI

    $145.00

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