2021 Subaru Wrx-sti Cat Back Exhaust System Upgrades

    WRX STI Upgrades by WRX STI Experts. 

    36 Results

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

    42 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
    HKS Hi-Power Cat Back Exhaust System - 2015-2021 Subaru WRX / STI

    55 In Stock

    31006-BF001

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

    $1,440.00
    AWE Touring Edition Cat-Back Exhaust (Diamond Black Tips) - 2011-2021 Subaru WRX / STI

    9 In Stock

    3015-43108

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

    5.0(1)
    $1,600.00
    X Force Race Catback Exhaust System with Quad Tip/Hot Dog Resonator - 2011-2021 Subaru WRX / STI

    ESSW28CS

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

    $1,125.00
    Invidia N1 Cat Back Exhaust With Bead Blasted Piping - Titanium Tip - 2015-2021 Subaru WRX / STI

    3 In Stock

    HS15SW4BGR1GT

    Invidia N1 Cat Back Exhaust With Bead Blasted Piping - Titanium Tip - 2015-2021 Subaru WRX / STI

    $973.14
    Invidia N1 Full Titanium Twin Outlet Cat-Back Exhaust System - 2015-2021 Subaru WRX

    2 In Stock

    HS15STIDTG

    Invidia N1 Full Titanium Twin Outlet Cat-Back Exhaust System - 2015-2021 Subaru WRX

    5.0(1)
    $1,835.54
    AWE Track Edition Cat-Back Exhaust (Diamond Black Tips) - 2011-2021 Subaru WRX / STI Sedan

    17 In Stock

    3020-43066

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

    5.0(2)
    $1,235.00
    HKS Legamax Premium Cat Back Exhaust System - 2015-2021 Subaru WRX / STI

    73 In Stock

    31021-BF001

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

    5.0(2)
    $1,386.00
    AWE Touring Edition Cat-Back Exhaust (Chrome Silver Tips) - 2011-2021 Subaru WRX / STI

    4 In Stock

    3015-42104

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

    $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
    Borla 3.0inch S-Type Cat-Back Exhaust System - 2015-2021 Subaru WRX / STI

    7 In Stock

    140595

    Borla 3.0inch S-Type Cat-Back Exhaust System - 2015-2021 Subaru WRX / STI

    5.0(10)
    $1,548.99
    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
    Cobb Tuning Titanium Cat Back Exhaust System - 2011-2021 Subaru WRX Sedan / STI Sedan

    515140

    Cobb Tuning Titanium Cat Back Exhaust System - 2011-2021 Subaru WRX Sedan / STI Sedan

    5.0(1)
    $2,450.00
    Remark 4" Quad Exhaust - 2015-2021 Subaru WRX / STI

    RK-C4076S-01C

    Remark 4" Quad Exhaust - 2015-2021 Subaru WRX / STI

    5.0(1)
    $1,295.00
    X-Force Stainless Steel 3" High Flow Cat-Back System with Varex Rear Mufflers - 2011-2021 Subaru WRX / STI Sedan

    ES-SW27-VMK-CBS

    X-Force Stainless Steel 3" High Flow Cat-Back System with Varex Rear Mufflers - 2011-2021 Subaru WRX / STI Sedan

    $1,665.00
    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
    X-Force 3 Inch Street Cat-Back Exhaust System - 2011-2021 Subaru WRX / STI (Sedan Only)

    ES-SW27-CBS

    X-Force 3 Inch Street Cat-Back Exhaust System - 2011-2021 Subaru WRX / STI (Sedan Only)

    $1,125.00
    Greddy Supreme SP Exhaust - 2015-2021 Subaru WRX / STI

    5 In Stock

    10168202

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

    5.0(6)
    $1,135.25
    GrimmSpeed Catback Exhaust System Non-Resonated - 2011-2021 Subaru WRX Sedan / STI Sedan

    070034

    GrimmSpeed Catback Exhaust System Non-Resonated - 2011-2021 Subaru WRX Sedan / STI Sedan

    5.0(1)
    $2,032.67
    HKS S4 Super Turbo Cat Back Exhaust System - 2015-2021 Subaru WRX / STI

    31029-AF012

    HKS S4 Super Turbo Cat Back Exhaust System - 2015-2021 Subaru WRX / STI

    $1,638.00

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