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    Shop 2021 Subaru WRX-STI Exhausts Upgrades by Category

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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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    Exhaust Hangers

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    Turbo Uppipes

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    Downpipes and Y Pipes

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    Shop 2021 Subaru Wrx-sti featured products

    144 Results

    GrimmSpeed Exhaust Manifold to Head Gasket (Pair) - 2002-2023 Subaru WRX / 2004-2021 STI / 2013-2021 Scion FR-S / Subaru BRZ / Toyota 86

    100 In Stock

    020001

    GrimmSpeed Exhaust Manifold to Head Gasket (Pair) - 2002-2023 Subaru WRX / 2004-2021 STI / 2013-2021 Scion FR-S / Subaru BRZ / Toyota 86

    5.0(27)
    $24.00
    Killer B Motorsport 4-1 Holy Header 2-Bolt w/EGT Bung - Subaru Models (inc. 2002-2014 WRX / 2004-2021 STI)

    HH-2BOLT-EGT

    Killer B Motorsport 4-1 Holy Header 2-Bolt w/EGT Bung - Subaru Models (inc. 2002-2014 WRX / 2004-2021 STI)

    $1,779.00
    X-Force Pro Series Catted Downpipe - 2008-2014 Subaru WRX / 2008-2021 STI

    ES-SW08-KITB

    X-Force Pro Series Catted Downpipe - 2008-2014 Subaru WRX / 2008-2021 STI

    4.3(3)
    $719.10
    AWE Touring Edition Cat-Back Exhaust (Diamond Black Tips) - 2011-2021 Subaru WRX / STI

    10 In Stock

    3015-43108

    AWE Touring Edition Cat-Back Exhaust (Diamond Black Tips) - 2011-2021 Subaru WRX / STI

    3.0(1)
    $1,600.00
    Overtake OEM Downpipe to 3in Cat Back Adapter - Subaru Turbo Models (Inc. 2002-2025 Subaru WRX / 2004-2021 Subaru WRX STi / 2004-2025 Subaru Forester XT)

    A10024

    Overtake OEM Downpipe to 3in Cat Back Adapter - Subaru Turbo Models (Inc. 2002-2025 Subaru WRX / 2004-2021 Subaru WRX STi / 2004-2025 Subaru Forester XT)

    $56.00
    Remark Axleback Exhaust (Muffler Version) - Stainless Double Wall Tip - 2015-2021 Subaru WRX/STI (VA)

    2 In Stock

    RO-TSVA-DM

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

    $935.00
    HKS Stainless Steel Equal Length Exhaust Manifold - 2008-2021 Subaru STI

    67 In Stock

    14019-AF002

    HKS Stainless Steel Equal Length Exhaust Manifold - 2008-2021 Subaru STI

    4.9(11)
    $665.00
    GrimmSpeed 2-Bolt Up-Pipe (Black) - EJ25 Engines (Inc. 2004-2021 Subaru STI / 2006-2014 Subaru WRX)

    37 In Stock

    .1099.1.BLK

    GrimmSpeed 2-Bolt Up-Pipe (Black) - EJ25 Engines (Inc. 2004-2021 Subaru STI / 2006-2014 Subaru WRX)

    $269.00
    Torque Solution 3in Downpipe To Stock Cat Back Adapter - 2004-2021 Subaru WRX / STI / 2004-2006 Baja / 2004-2013 Forester

    6 In Stock

    TS-SU-480

    Torque Solution 3in Downpipe To Stock Cat Back Adapter - 2004-2021 Subaru WRX / STI / 2004-2006 Baja / 2004-2013 Forester

    5.0(2)
    $55.54
    Remark R1-Spec Catback Exhaust Titanium Muffler Section w/ Burnt Tip - 2015-2021 Subaru WRX / STI

    25 In Stock

    RK-C1076S-01T

    Remark R1-Spec Catback Exhaust Titanium Muffler Section w/ Burnt Tip - 2015-2021 Subaru WRX / STI

    $1,095.00
    HKS Legamax Premium Axle Back Exhaust - 2015-2021 Subaru WRX / STI

    31021-AF024

    HKS Legamax Premium Axle Back Exhaust - 2015-2021 Subaru WRX / STI

    5.0(1)
    $1,260.00
    GrimmSpeed Universal Exhaust Gasket 2.25-2.5in - Universal

    100 In Stock

    020031

    GrimmSpeed Universal Exhaust Gasket 2.25-2.5in - Universal

    4.0(4)
    $25.00
    Torque Solution OEM Downpipe to 3in Cat Back Adapter - 2002-2021 Subaru WRX / STI / 2004-2006 Baja / 2004-2013 Forester / 2005-2009 Legacy / Outback / 2005-2006 Saab 9-2X

    55 In Stock

    TS-SU-479

    Torque Solution OEM Downpipe to 3in Cat Back Adapter - 2002-2021 Subaru WRX / STI / 2004-2006 Baja / 2004-2013 Forester / 2005-2009 Legacy / Outback / 2005-2006 Saab 9-2X

    $55.54
    HKS Hi-Power Cat Back Exhaust - 2015-2021 Subaru WRX / STI

    55 In Stock

    31006-BF001

    HKS Hi-Power Cat Back Exhaust - 2015-2021 Subaru WRX / STI

    5.0(3)
    $1,440.00
    FactionFab MLS Subaru EJ Up-Pipe to Turbo Gasket - Subaru Turbo Models

    23 In Stock

    1.10013.1

    FactionFab MLS Subaru EJ Up-Pipe to Turbo Gasket - Subaru Turbo Models

    $15.00
    Invidia Catted Downpipe Divorced Wastegate w/ 2 Bungs - Subaru Models (Inc. 2008-2014 WRX / 2008-2021 STI)

    HS08SW1DOC

    Invidia Catted Downpipe Divorced Wastegate w/ 2 Bungs - Subaru Models (Inc. 2008-2014 WRX / 2008-2021 STI)

    4.8(27)
    $999.60
    Killer B Motorsports EJ Exhaust Manifold Gasket Kit - Subaru EJ Turbo Models

    GSKT

    Killer B Motorsports EJ Exhaust Manifold Gasket Kit - Subaru EJ Turbo Models

    $68.00
    X Force Race Catback Exhaust System with Hot Dog Resonator - 2011-2021 Subaru WRX / STI

    ESSW28CS

    X Force Race Catback Exhaust System with Hot Dog Resonator - 2011-2021 Subaru WRX / STI

    $1,125.00
    FactionFab MLS Lower Uppipe Gasket - Subaru Turbo Models

    20 In Stock

    1.10012.1

    FactionFab MLS Lower Uppipe Gasket - Subaru Turbo Models

    $14.00
    PERRIN 12MM Red Exhaust Hanger - Subaru Models (inc. 2008-2021 WRX / STI / 2005-2009 Legacy GT)

    18 In Stock

    ASM-EXT-100

    PERRIN 12MM Red Exhaust Hanger - Subaru Models (inc. 2008-2021 WRX / STI / 2005-2009 Legacy GT)

    5.0(1)
    $13.81

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