2021 Subaru Wrx-sti Exhausts Upgrades

    WRX STI Upgrades by WRX STI Experts. 

    Shop 2021 Subaru Wrx-sti Exhausts Upgrades by Category

    Cat Back Exhaust System image

    Cat Back Exhaust System

    Exhaust Gaskets and Hardware image

    Exhaust Gaskets and Hardware

    Exhaust Headers and Manifolds image

    Exhaust Headers and Manifolds

    Axle Back Exhausts image

    Axle Back Exhausts

    Heat Isolation and Heat Wrap image

    Heat Isolation and Heat Wrap

    Exhaust Hangers image

    Exhaust Hangers

    Exhaust Heat Shields image

    Exhaust Heat Shields

    Downpipes and Y Pipes image

    Downpipes and Y Pipes

    Turbo Uppipes image

    Turbo Uppipes

    Exhaust Tips and Silencers image

    Exhaust Tips and Silencers

    Shop 2021 Subaru Wrx-sti featured products

    123 Results

    Subaru / Toyota OEM Donut Gasket - 2015-2021 Subaru WRX / 2013-2021 Scion FRS / Subaru BRZ / Toyota 86

    35 In Stock

    44022AA123

    Subaru / Toyota OEM Donut Gasket - 2015-2021 Subaru WRX / 2013-2021 Scion FRS / Subaru BRZ / Toyota 86

    $24.70
    Mishimoto Stainless Steel 3inch Cat Back Exhaust System - 2015-2021 Subaru WRX / STI

    MMEXH-WRX-15

    Mishimoto Stainless Steel 3inch Cat Back Exhaust System - 2015-2021 Subaru WRX / STI

    5.0(1)
    $1,398.72
    Remark Muffler Axleback Exhaust Double Wall 3.5in Tip - 2015-2021 Subaru WRX / STI

    99 In Stock

    RO-TSVA-D

    Remark Muffler Axleback Exhaust Double Wall 3.5in Tip - 2015-2021 Subaru WRX / STI

    5.0(1)
    $545.00
    HKS Super Turbo Cat Back Exhaust System - 2015-2021 Subaru WRX / STI

    31029-AF011

    HKS Super Turbo Cat Back Exhaust System - 2015-2021 Subaru WRX / STI

    $1,656.00
    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
    Remark Muffler Axleback Exhaust Single Wall 3.5in Tip- 2015-2021 Subaru WRX / STI

    99 In Stock

    RO-TSVA-S

    Remark Muffler Axleback Exhaust Single Wall 3.5in Tip- 2015-2021 Subaru WRX / STI

    $495.00
    COBB Tuning Turbo Heatshield - 2002-2007 Subaru WRX / 2004-2021 STI / 2004-2008 Forester XT

    3 In Stock

    512510

    COBB Tuning Turbo Heatshield - 2002-2007 Subaru WRX / 2004-2021 STI / 2004-2008 Forester XT

    5.0(1)
    $99.00
    Invidia Catted Downpipe Divorced Wastegate With 2 Bungs - 2008-2014 Subaru WRX / 2008-2021 Subaru STI / 2005-2009 Legacy GT / Outback XT / 2009-2013 Forester XT

    HS08SW1DOCB

    Invidia Catted Downpipe Divorced Wastegate With 2 Bungs - 2008-2014 Subaru WRX / 2008-2021 Subaru STI / 2005-2009 Legacy GT / Outback XT / 2009-2013 Forester XT

    $999.60
    COBB Subaru Brushed Titanium Tip Kit - 2011-2014 Subaru WRX / 2011-2021 STI

    515145-NB

    COBB Subaru Brushed Titanium Tip Kit - 2011-2014 Subaru WRX / 2011-2021 STI

    $280.00
    GrimmSpeed J-Pipe Hardware Kit - 2015-2021 Subaru WRX / 2013-2017 Scion FR-S / 2013-2020 Subaru BRZ / 2017-2021 Toyota 86

    38 In Stock

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

    $52.00
    Invidia N1 Dual Cat-Back Exhaust - Titanium Tip - 2015-2021 Subaru WRX / STI / 2014-2018 Forester

    23 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
    Invidia 3in Downpipe to 2.5in Exhaust Adapter - Subaru Models (Inc. 2004-2021 Subaru STI)

    HS02SWIAPD

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

    $68.60
    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
    Corsa 3" Catback Exhaust System (Stainless Steel Tips) - 2015-2021 Subaru WRX / STI

    38 In Stock

    14857

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

    $1,856.99
    FactionFab Lower Uppipe Gasket - 2015-2021 Subaru STI / 2004-2013 Forester / 2002-2014 Impreza

    20 In Stock

    1.10012.1

    FactionFab Lower Uppipe Gasket - 2015-2021 Subaru STI / 2004-2013 Forester / 2002-2014 Impreza

    $14.00
    Invidia Downpipe - Catted Divorced Wastegate with Extra O2 Bung - 2008-2021 Subaru Impreza WRX / STI / 2005-2009 Legacy GT / Outback XT / 2009-2013 Forester XT

    55 In Stock

    HS08SW1DOC

    Invidia Downpipe - Catted Divorced Wastegate with Extra O2 Bung - 2008-2021 Subaru Impreza WRX / STI / 2005-2009 Legacy GT / Outback XT / 2009-2013 Forester XT

    $999.60
    Grimmspeed Turbo Heat Shield V2 - 2015-2021 Subaru STI / 2004-2008 Forester / 2002-2014 Impreza

    13 In Stock

    092007

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

    4.0(1)
    $83.00
    GrimmSpeed Subaru STI Exhaust Gasket Set - 2015-2021 Subaru STI

    50 In Stock

    020040

    GrimmSpeed Subaru STI Exhaust Gasket Set - 2015-2021 Subaru STI

    5.0(1)
    $105.00
    PERRIN Exhaust Hangers - Subaru Models (Inc. 2015-2021 Subaru WRX / STI / 2008-2014 Impreza / 2013-2016 Scion FR-S / 2013-2020 Subaru BRZ / 2017-2020 Toyota 86)

    118 In Stock

    ASM-EXT-100

    PERRIN Exhaust Hangers - Subaru Models (Inc. 2015-2021 Subaru WRX / STI / 2008-2014 Impreza / 2013-2016 Scion FR-S / 2013-2020 Subaru BRZ / 2017-2020 Toyota 86)

    5.0(1)
    $13.81
    FactionFab Turbo to Downpipe Gasket - 2015-2021 Subaru STI / 2004-2013 Forester / 2002-2014 Impreza

    13 In Stock

    1.10014.1

    FactionFab Turbo to Downpipe Gasket - 2015-2021 Subaru STI / 2004-2013 Forester / 2002-2014 Impreza

    $17.00

    Page 1 of 7

    110% Price Match Guarantee*

    Find the same product for less on any competitor's site, and we'll match that price and beat if by 10% of the difference!* 

    Free Shipping*

    Free shipping is available within the lower 48 states for orders totalling $199 or more. Simply select the free shipping option during checkout.
    *Exclusions apply

    30 Day, 100% Satisfaction

    SubiSpeed Guarantee items may be returned within 30 days of the original invoice date and must include all the original parts and contents for a refund.