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

    1943 Results

    COBB TD05H-20G-8 Turbocharger - 2008-2021 Subaru STI

    6 In Stock

    E1120G

    COBB TD05H-20G-8 Turbocharger - 2008-2021 Subaru STI

    $1,470.00
    IAG Competition Series 6 Speed Transmission Mount - 2015-2021 Subaru STI

    DRV-2111

    IAG Competition Series 6 Speed Transmission Mount - 2015-2021 Subaru STI

    $299.99
    Compressive louver cover - 2015-2021 Subaru WRX / STI

    LVC-BK-1

    Compressive louver cover - 2015-2021 Subaru WRX / STI

    $219.00
    TiAL MVS 38mm Wastegate - Universal

    47 In Stock

    TIA002953

    TiAL MVS 38mm Wastegate - Universal

    $396.05
    OLM Paint Matched JDM Style Rear Splash Guards - Galaxy Blue Pearl - 2015-2021 Subaru WRX / STI

    3 In Stock

    A.70212.1-E8H

    OLM Paint Matched JDM Style Rear Splash Guards - Galaxy Blue Pearl - 2015-2021 Subaru WRX / STI

    $189.00
    Invidia 3in Downpipe to 2.5in Exhaust Adapter - Subaru Models (Inc. 2004-2021 Subaru STI)

    3 In Stock

    HS02SWIAPD

    Invidia 3in Downpipe to 2.5in Exhaust Adapter - Subaru Models (Inc. 2004-2021 Subaru STI)

    $68.60
    Killer B Motorsport Upper Coolant Reservoir w/ AN Fittings Black - 2002-2007 Subaru WRX / 2004-2021 STI

    UTCRV2AN-B

    Killer B Motorsport Upper Coolant Reservoir w/ AN Fittings Black - 2002-2007 Subaru WRX / 2004-2021 STI

    $219.00
    EBC Brakes S9 Front Brake Kit Yellowstuff Pads and USR Rotors - 2015-2017 Subaru STI / 2005-2014 Impreza

    4 In Stock

    S9KF1520

    EBC Brakes S9 Front Brake Kit Yellowstuff Pads and USR Rotors - 2015-2017 Subaru STI / 2005-2014 Impreza

    $505.70
    Boomba Racing Brake Cooling Deflector - 2015-2021 Subaru STI / 2008-2014 Impreza

    031000080300

    Boomba Racing Brake Cooling Deflector - 2015-2021 Subaru STI / 2008-2014 Impreza

    $191.90

    64660VA330VI

    Subaru USDM OEM Special Edition Type RA Red Seat Belt by Takata - 2015-2021 Subaru WRX / STI

    $302.48
    ISC 5x114 Wheel Spacers (15mm and 25mm) - 2015-2024 Subaru WRX / 2015-2021 STI / 2019-2024 / 2005-2014 Impreza

    13 In Stock

    WS5X11415B

    ISC 5x114 Wheel Spacers (15mm and 25mm) - 2015-2024 Subaru WRX / 2015-2021 STI / 2019-2024 / 2005-2014 Impreza

    $135.00
    Killer B 3-Inch to 3-Inch Coupler For Killer B Motorsport Extreme Flow HARD Turbo Inlet - 2002-2007 Subaru WRX / 2004-2021 STI

    TIEJC3

    Killer B 3-Inch to 3-Inch Coupler For Killer B Motorsport Extreme Flow HARD Turbo Inlet - 2002-2007 Subaru WRX / 2004-2021 STI

    $49.00
    OLM LE Dry Carbon Fiber Center AC Trim Covers - 2015 Subaru WRX / STI / 2014 Forester / 2013-2014 Crosstrek

    3 In Stock

    OLM-AXIS-15WRX-CENTER-ACVENT

    OLM LE Dry Carbon Fiber Center AC Trim Covers - 2015 Subaru WRX / STI / 2014 Forester / 2013-2014 Crosstrek

    $169.00
    Subispeed Tall Gated Shift Knob - 2015-2021 Subaru WRX / STI

    9 In Stock

    SS6MTTKNOBBL

    Subispeed Tall Gated Shift Knob - 2015-2021 Subaru WRX / STI

    $99.00
    OLM Leather Look Kick Guard Protection Set with Red Stitching (Non HK Equipped) - 2015-2021 Subaru WRX / STI

    9 In Stock

    KG-SL-001-L-R

    OLM Leather Look Kick Guard Protection Set with Red Stitching (Non HK Equipped) - 2015-2021 Subaru WRX / STI

    $70.00
    Wilwood AERO6 Front Kit 14in Slotted Nickel - 2002-2014 Subaru WRX / 2004-2017 Subaru STI

    140-12876-N

    Wilwood AERO6 Front Kit 14in Slotted Nickel - 2002-2014 Subaru WRX / 2004-2017 Subaru STI

    $2,029.99
    Mele Design Battery Mount - 600 Series Black Texture - 2015-2021 Subaru WRX / STI

    3 In Stock

    SUB-609-BLK

    Mele Design Battery Mount - 600 Series Black Texture - 2015-2021 Subaru WRX / STI

    $155.00
    Bilstein B8 Performance Strut - 2015-2021 Subaru WRX / STI

    1 In Stock

    35-300083

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

    $453.90
    Subaru OEM Turbo to Downpipe Gasket - 2015-2021 Subaru STI

    7 In Stock

    44022AA180

    Subaru OEM Turbo to Downpipe Gasket - 2015-2021 Subaru STI

    5.0(1)
    $27.77
    PERRIN Neon Yellow Round Oil Fill Cap - Subaru Models (Inc. 2015-2021 Subaru WRX / STI / 2014-2018 Forester / 2013-2017 Crosstrek / 2013-2016 Scion FR-S / 2013-2020 Subaru BRZ / 2017-2020 Toyota 86)

    18 In Stock

    PSP-ENG-711NY

    PERRIN Neon Yellow Round Oil Fill Cap - Subaru Models (Inc. 2015-2021 Subaru WRX / STI / 2014-2018 Forester / 2013-2017 Crosstrek / 2013-2016 Scion FR-S / 2013-2020 Subaru BRZ / 2017-2020 Toyota 86)

    $74.80

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