2015 Subaru WRX STI Mods, Upgrades & Accessories

    WRX STI Upgrades by WRX STI Experts.

    The mighty Subaru STI is a top dog at the track and on the street! Whether you want to dominate your competition or turn your STI into an awesome highway cruiser, we here at SubiSpeed have you covered. Our lineup of Subaru STI accessories and aftermarket performance parts can add power, improve handling, and add an awesome look to your aggressive Subaru STI build. We know you only want the best performance parts and accessories for your STI so we've lined up amazing products from top manufacturers. When you move to big power, we have the perfect top and front mount intercoolers to help you dominate. While our huge selection of STI exhaust systems add huge horsepower and torque! Throw in some STI emblems and vinyl graphics to get a whole new look!

    Check out our Top 10 Performance Mods for your 2015 WRX STi:

     

    Shop 2015 Subaru Wrx-sti Upgrades by Category

    Shop 2015 Subaru Wrx-sti featured products

    1772 Results

    Invidia Equal Length Big Piping Exhaust Manifold - 2002-2014 Subaru WRX / 2004-2021 STI / 2005-2009 Legacy GT

    HS05SW1HDP

    Invidia Equal Length Big Piping Exhaust Manifold - 2002-2014 Subaru WRX / 2004-2021 STI / 2005-2009 Legacy GT

    5.0(1)
    $2,462.02
    OLM LE Dry Carbon Fiber Full Mirror Covers (No Turn Signal Hole) - 2015-2021 Subaru WRX / STI

    1 In Stock

    ST416

    OLM LE Dry Carbon Fiber Full Mirror Covers (No Turn Signal Hole) - 2015-2021 Subaru WRX / STI

    $219.00
    Work Wheels Emotion CR Kiwami  GT Silver 18x9.5 +38mm 5x114.3 (Sold as Pair) - 2015-2024 Subaru WRX / 2015-2021 STI / 2019-2024 Forester

    3 In Stock

    WCK189538YGTS

    Work Wheels Emotion CR Kiwami GT Silver 18x9.5 +38mm 5x114.3 (Sold as Pair) - 2015-2024 Subaru WRX / 2015-2021 STI / 2019-2024 Forester

    $1,308.58
    GrimmSpeed Alternator Cover (Neon Green) - 2015-2021 Subaru STI / 2004-2013 Forester / 2002-2014 Impreza / 2005-2009 Legacy / Outback

    41 In Stock

    099050

    GrimmSpeed Alternator Cover (Neon Green) - 2015-2021 Subaru STI / 2004-2013 Forester / 2002-2014 Impreza / 2005-2009 Legacy / Outback

    $84.15
    Dress Up Bolts Stage 2 Titanium Hardware Engine Kit for EJ257 Engine (Blue) - 2015-2021 Subaru STI

    SUB-017-TI-BLU

    Dress Up Bolts Stage 2 Titanium Hardware Engine Kit for EJ257 Engine (Blue) - 2015-2021 Subaru STI

    $203.93
    Clutch Masters Chromoly Steel Lightweight Flywheel - 2015-2021 Subaru STI / 2004-2014 Impreza

    2 In Stock

    FW-721-SF

    Clutch Masters Chromoly Steel Lightweight Flywheel - 2015-2021 Subaru STI / 2004-2014 Impreza

    $451.44
    Project Kics Leggdura Racing Shell Type Lug Nut 53mm (Open-End) - Universal

    3 In Stock

    WRL5313K

    Project Kics Leggdura Racing Shell Type Lug Nut 53mm (Open-End) - Universal

    5.0(1)
    $361.00
    STI JDM Rear Brake Light Bracket - 2015-2021 Subaru WRX / STI

    1 In Stock

    84927FJ000

    STI JDM Rear Brake Light Bracket - 2015-2021 Subaru WRX / STI

    $5.86
    STI JDM Group N Transmission Mount 6MT  - 2004-2021 Subaru STI

    ST410224S040

    STI JDM Group N Transmission Mount 6MT - 2004-2021 Subaru STI

    $109.30
    Whiteline Rear Sway Bar (20mm Non Adjustable) - 2015-2021 Subaru WRX/STI

    BSR49

    Whiteline Rear Sway Bar (20mm Non Adjustable) - 2015-2021 Subaru WRX/STI

    $298.88
    Cusco 3 Piece Engine and Transmission Mount Set - 2015-2021 Subaru STI / 2002-2005 Impreza

    5 In Stock

    660911SET

    Cusco 3 Piece Engine and Transmission Mount Set - 2015-2021 Subaru STI / 2002-2005 Impreza

    $365.00
    DarkMatterX DM-1 Precision Shift Arm - 2008-2021 Subaru STI

    DarkMatterX DM-1 Precision Shift Arm - 2008-2021 Subaru STI

    $465.00
    APR Performance Factory Wing Gurney Flap - 2015-2021 Subaru STI

    GF-801545

    APR Performance Factory Wing Gurney Flap - 2015-2021 Subaru STI

    $127.50
    Bilstein B8 Performance Strut - 2015-2021 Subaru WRX / STI

    5 In Stock

    24-249508

    Bilstein B8 Performance Strut - 2015-2021 Subaru WRX / STI

    $218.28
    Project Kics Leggdura Racing Lugnuts W/ Laser Logo

    WKIZ3G

    Project Kics Leggdura Racing Lugnuts W/ Laser Logo

    $250.80
    Cusco Front Power Brace Crossmember - 2015-2021 Subaru STI

    8 In Stock

    6A1492M

    Cusco Front Power Brace Crossmember - 2015-2021 Subaru STI

    5.0(1)
    $400.00
    Torque Solution Thermal Downpipe Blanket Titanium Subaru EJ20/EJ25 - 2015-2021 Subaru STI / 2003-2006 Impreza

    8 In Stock

    TS-TH-SDPL

    Torque Solution Thermal Downpipe Blanket Titanium Subaru EJ20/EJ25 - 2015-2021 Subaru STI / 2003-2006 Impreza

    $166.65
    PERRIN Recirculating Blow Off Valve (Black) - Subaru Models (Inc. 2002-2014 Subaru WRX / 2004-2021 STI / 2006-2013 Forester XT / 2005-2009 Legacy GT / Outback XT)

    18 In Stock

    PSP-TAC-600BK

    PERRIN Recirculating Blow Off Valve (Black) - Subaru Models (Inc. 2002-2014 Subaru WRX / 2004-2021 STI / 2006-2013 Forester XT / 2005-2009 Legacy GT / Outback XT)

    $236.30
    Work Wheels Emotion T5R Matte Graphite 18x9.5 +38mm 5x114.3 (Sold as Pair) - 2015-2024 Subaru WRX / 2015-2021 STI / 2019-2024 Forester

    WT5R189538YMGK

    Work Wheels Emotion T5R Matte Graphite 18x9.5 +38mm 5x114.3 (Sold as Pair) - 2015-2024 Subaru WRX / 2015-2021 STI / 2019-2024 Forester

    $1,237.20
    GrimmSpeed Strut Bar - Red - 2015-2021 Subaru WRX / STI

    GRM1.1029.1.RED

    GrimmSpeed Strut Bar - Red - 2015-2021 Subaru WRX / STI

    $249.00

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