2021 Subaru Wrx-sti Exhausts Upgrades

    WRX STI Upgrades by WRX STI Experts. 

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    Cat Back Exhaust System

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    Exhaust Gaskets and Hardware

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    Exhaust Headers and Manifolds

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    Axle Back Exhausts

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    Heat Isolation and Heat Wrap

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    Exhaust Hangers

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    Exhaust Heat Shields

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    Downpipes and Y Pipes

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    Turbo Uppipes

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    Exhaust Tips and Silencers

    Shop 2021 Subaru Wrx-sti featured products

    116 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
    GrimmSpeed 3in Downpipe to Stock Cat-Back Adapter - 2002-2021 Subaru Turbo EJ Engines

    49 In Stock

    077044

    GrimmSpeed 3in Downpipe to Stock Cat-Back Adapter - 2002-2021 Subaru Turbo EJ Engines

    5.0(1)
    $60.00
    ETS Subaru MaxFlow V2 LW Headers - 2015-2021 Subaru STI

    ETS Subaru MaxFlow V2 LW Headers - 2015-2021 Subaru STI

    $1,495.00
    GrimmSpeed Cat-Back Exhaust System Resonated - 2011-2021 Subaru WRX Sedan / STI Sedan

    070033

    GrimmSpeed Cat-Back Exhaust System Resonated - 2011-2021 Subaru WRX Sedan / STI Sedan

    $2,115.07
    Remark R1-Spec Catback Exhaust Burnt Stainless Steel Tip - 2015-2021 Subaru WRX / STI

    1 In Stock

    RK-C1076S-01T

    Remark R1-Spec Catback Exhaust Burnt Stainless Steel Tip - 2015-2021 Subaru WRX / STI

    5.0(1)
    $1,095.00
    GrimmSpeed Stock Downpipe to 3inch Exhaust Adapter - Subaru Models (inc. 2004-2021 Subaru STI / 2002-2021 WRX)

    47 In Stock

    077046

    GrimmSpeed Stock Downpipe to 3inch Exhaust Adapter - Subaru Models (inc. 2004-2021 Subaru STI / 2002-2021 WRX)

    4.9(9)
    $60.00
    HKS S4 Legamax Premium Ti-1 Axle Back - 2015-2021 Subaru WRX / STI

    31021-AF024

    HKS S4 Legamax Premium Ti-1 Axle Back - 2015-2021 Subaru WRX / STI

    5.0(2)
    $1,700.00
    Remark Axleback Exhaust (Muffler Version) - Burnt Stainless Double Wall Tips - 2015-2021 Subaru WRX / STI (VA)

    1 In Stock

    RO-TTVA-DM

    Remark Axleback Exhaust (Muffler Version) - Burnt Stainless Double Wall Tips - 2015-2021 Subaru WRX / STI (VA)

    $995.00
    FactionFab 3D Turbo Blanket - 2015-2021 Subaru STI / 2004-2013 Forester / 2002-2014 Impreza / 2005-2009 Legacy / Outback

    1.10109.1

    FactionFab 3D Turbo Blanket - 2015-2021 Subaru STI / 2004-2013 Forester / 2002-2014 Impreza / 2005-2009 Legacy / Outback

    $150.00
    Greddy Supreme SP Exhaust - 2015-2021 Subaru WRX / STI

    10168202

    Greddy Supreme SP Exhaust - 2015-2021 Subaru WRX / STI

    5.0(6)
    $1,135.25
    Corsa 3" Catback Exhaust System (Stainless Steel Tips) - 2015-2021 Subaru WRX / STI

    14857

    Corsa 3" Catback Exhaust System (Stainless Steel Tips) - 2015-2021 Subaru WRX / STI

    $1,856.99
    AWE Touring Edition Cat-Back Exhaust (Chrome Silver Quad Tips) - 2015-2021 Subaru WRX / STI

    6 In Stock

    3015-42098

    AWE Touring Edition Cat-Back Exhaust (Chrome Silver Quad Tips) - 2015-2021 Subaru WRX / STI

    5.0(2)
    $1,545.00
    Subaru OEM Turbo to Downpipe Gasket - 2015-2021 Subaru STI

    44022AA180

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

    5.0(1)
    $27.77
    IAG Performance Unequal Length Header With Uppipe - 2002-2014 Subaru WRX / 2004-2021 STI

    IAG-EXT-1000

    IAG Performance Unequal Length Header With Uppipe - 2002-2014 Subaru WRX / 2004-2021 STI

    $849.99
    Invidia Stock Downpipe to 3in Exhaust Adapter - Subaru Models (Inc. 2002-2021 Subaru WRX / STI

    98 In Stock

    HS02SWIAPE

    Invidia Stock Downpipe to 3in Exhaust Adapter - Subaru Models (Inc. 2002-2021 Subaru WRX / STI

    5.0(1)
    $68.60
    GrimmSpeed Uppipe to Turbo Gasket - 2015-2021 Subaru STI / 2004-2013 Forester / 2002-2014 Impreza

    49 In Stock

    024001

    GrimmSpeed Uppipe to Turbo Gasket - 2015-2021 Subaru STI / 2004-2013 Forester / 2002-2014 Impreza

    $17.00
    GrimmSpeed Exhaust Manifold to Up Pipe Gasket - 2015-2021 Subaru STI / 2004-2013 Forester / 2002-2014 Impreza

    47 In Stock

    026001

    GrimmSpeed Exhaust Manifold to Up Pipe Gasket - 2015-2021 Subaru STI / 2004-2013 Forester / 2002-2014 Impreza

    $14.00
    Grimmspeed Turbo Heat Shield V2 Ceramic Coated - 2015-2021 Subaru STI / 2004-2008 Forester / 2002-2014 Impreza

    092008

    Grimmspeed Turbo Heat Shield V2 Ceramic Coated - 2015-2021 Subaru STI / 2004-2008 Forester / 2002-2014 Impreza

    $104.00
    Invidia N1 Dual Cat-Back Exhaust - Titanium Tip - 2015-2021 Subaru WRX / STI / 2014-2018 Forester

    43 In Stock

    HS15STIGTT

    Invidia N1 Dual Cat-Back Exhaust - Titanium Tip - 2015-2021 Subaru WRX / STI / 2014-2018 Forester

    5.0(2)
    $1,308.30
    GrimmSpeed Two Position Poly Exhaust Hanger - 2008-2021 Subaru WRX / STI

    46 In Stock

    070047

    GrimmSpeed Two Position Poly Exhaust Hanger - 2008-2021 Subaru WRX / STI

    5.0(3)
    $42.00

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