2018 Subaru Wrx-sti Exhausts Upgrades

    WRX STI Upgrades by WRX STI Experts. 

    Shop 2018 Subaru Wrx-sti Exhausts Upgrades by Category

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    Cat Back Exhaust System

    Exhaust Gaskets and Hardware image

    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 Heat Shields

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    Downpipes and Y Pipes

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    Exhaust Hangers

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    Exhaust Tips and Silencers

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    Turbo Uppipes

    Shop 2018 Subaru Wrx-sti featured products

    117 Results

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

    39 In Stock

    HS02SWIAPD

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

    $68.60
    Invidia R400 Gemini Single Layer Cat Back Exhaust - Titanium Burnt Tips - 2015-2021 Subaru WRX / STI

    85 In Stock

    HS15STIGM4ST

    Invidia R400 Gemini Single Layer Cat Back Exhaust - Titanium Burnt Tips - 2015-2021 Subaru WRX / STI

    5.0(2)
    $1,848.28
    Overtake OEM Downpipe to 3in Cat Back Adapter - Subaru Turbo Models (Inc. 2002-2025 Subaru WRX / 2004-2021 Subaru WRX STi)

    A10024

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

    $56.00
    Invidia Q300 Resonated Single Exit Catback Exhaust - Stainless Steel Tip - 2015-2021 Subaru WRX / STI

    4 In Stock

    HS15SW4G3S

    Invidia Q300 Resonated Single Exit Catback Exhaust - Stainless Steel Tip - 2015-2021 Subaru WRX / STI

    5.0(1)
    $1,166.20
    Grimmspeed Turbo Heat Shield V2 Ceramic Coated - 2015-2021 Subaru STI / 2004-2008 Forester / 2002-2014 Impreza

    7 In Stock

    092008

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

    $109.00
    ETS Subaru MaxFlow V2 LW Headers - 2015-2021 Subaru STI

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

    $1,495.00
    Killer B Motorsport 4-1 Holy Header DIY Rotated - 2002-2014 Subaru WRX / 2004-2021 STI / 2004-2013 Forester XT

    HH-DIY

    Killer B Motorsport 4-1 Holy Header DIY Rotated - 2002-2014 Subaru WRX / 2004-2021 STI / 2004-2013 Forester XT

    $1,756.00
    GrimmSpeed Two Position Poly Exhaust Hanger Single - 2008-2021 Subaru WRX / STI

    46 In Stock

    070046

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

    5.0(3)
    $15.00
    ETS Subaru STI V2 MaxFlow Header (2-bollt Flange) - 2015-2021 Subaru STI

    200-10-EXM-201

    ETS Subaru STI V2 MaxFlow Header (2-bollt Flange) - 2015-2021 Subaru STI

    5.0(1)
    $1,495.00
    Torque Solution Turbo Blanket - 2015+ STI

    4 In Stock

    TS-TB-LSU

    Torque Solution Turbo Blanket - 2015+ STI

    $99.99
    GrimmSpeed Downpipe Donut - 2015-2021 Subaru WRX / STI / 2004-2013 Forester / 2002-2014 Impreza

    49 In Stock

    020099

    GrimmSpeed Downpipe Donut - 2015-2021 Subaru WRX / STI / 2004-2013 Forester / 2002-2014 Impreza

    5.0(1)
    $18.00
    IAG Performance Equal Length Header With Uppipe - 2015-2021 Subaru STI / 2004-2013 Forester / 2002-2014 Impreza

    IAG-EXT-1001

    IAG Performance Equal Length Header With Uppipe - 2015-2021 Subaru STI / 2004-2013 Forester / 2002-2014 Impreza

    $764.99
    GrimmSpeed J-Pipe Hardware Kit - 2015-2021 Subaru WRX / 2013-2017 Scion FR-S / 2013-2020 Subaru BRZ / 2017-2021 Toyota 86

    46 In Stock

    GrimmSpeed J-Pipe Hardware Kit - 2015-2021 Subaru WRX / 2013-2017 Scion FR-S / 2013-2020 Subaru BRZ / 2017-2021 Toyota 86

    $54.00
    Killer B Motorsport 4-1 Holy Header - 2002-2014 Subaru WRX / 2004-2021 STI / 2004-2013 Forester XT

    HH4-1

    Killer B Motorsport 4-1 Holy Header - 2002-2014 Subaru WRX / 2004-2021 STI / 2004-2013 Forester XT

    $1,985.00
    Invidia Q300 Twin Outlet Rolled Titanium Burnt Quad Tip Cat-Back Exhaust - 2015-2021 Subaru WRX / STI

    16 In Stock

    HS15STIG3T

    Invidia Q300 Twin Outlet Rolled Titanium Burnt Quad Tip Cat-Back Exhaust - 2015-2021 Subaru WRX / STI

    5.0(2)
    $1,848.28
    Magnaflow Competition Series 3" Cat Back Exhaust System - 2015-2021 Subaru WRX / STI

    19361

    Magnaflow Competition Series 3" Cat Back Exhaust System - 2015-2021 Subaru WRX / STI

    5.0(6)
    $1,264.00
    AWE Touring Edition Cat-Back Exhaust (Chrome Silver Quad Tips) - 2015-2021 Subaru WRX / STI

    4 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
    Invidia Up Pipe without EGT Bung - 2004-2021 Subaru STI

    HS06SW1UPP

    Invidia Up Pipe without EGT Bung - 2004-2021 Subaru STI

    5.0(1)
    $353.84
    Invidia Equal Length Race Exhaust Manifold - 2002-2014 Subaru WRX / 2004-2021 STI / 2008-2014 Forester

    15 In Stock

    HS05SW1HDR

    Invidia Equal Length Race Exhaust Manifold - 2002-2014 Subaru WRX / 2004-2021 STI / 2008-2014 Forester

    $1,370.92
    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

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