2018 Subaru Wrx-sti Cat Back Exhaust System Upgrades

    WRX STI Upgrades by WRX STI Experts. 

    39 Results

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

    71 In Stock

    31021-BF001

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

    5.0(2)
    $1,386.00
    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
    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
    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
    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
    Borla 3.0inch S-Type Cat-Back Exhaust System - 2015-2021 Subaru WRX / STI

    8 In Stock

    140595

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

    5.0(10)
    $1,548.99
    ETS Catback Exhaust System w/ Muffled Rear and Resonated Mid Pipe - Stealth Black Tips - 2015-2021 Subaru WRX / STI

    200-30-EXH-029

    ETS Catback Exhaust System w/ Muffled Rear and Resonated Mid Pipe - Stealth Black Tips - 2015-2021 Subaru WRX / STI

    $1,545.00
    Invidia Gemini (R400) Quad Tip Exhaust (Polished Tips) - 2015-2021 Subaru WRX / STI

    2 In Stock

    HS15STIGM4SS

    Invidia Gemini (R400) Quad Tip Exhaust (Polished Tips) - 2015-2021 Subaru WRX / STI

    5.0(1)
    $1,736.56
    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
    AWE Track Edition Cat-Back Exhaust (Diamond Black Tips) - 2011-2021 Subaru WRX / STI Sedan

    13 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
    Invidia N1 Cat Back Exhaust With Bead Blasted Piping - Titanium Tip - 2015-2021 Subaru WRX / STI

    8 In Stock

    HS15SW4BGR1GT

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

    $973.14
    Greddy Supreme SP Exhaust - 2015-2021 Subaru WRX / STI

    3 In Stock

    10168202

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

    5.0(6)
    $1,135.25
    Invidia N1 Dual Cat-Back Exhaust - Stainless Tip - 2015-2021 Subaru WRX / STI / 2014-2018 Forester

    7 In Stock

    HS15STIGTP

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

    5.0(1)
    $1,269.10
    Invidia N1 Racing Single Exit Catback Exhaust - Titanium Tip - 2015-2021 Subaru WRX / STI

    15 In Stock

    HS15SW4GST

    Invidia N1 Racing Single Exit Catback Exhaust - Titanium Tip - 2015-2021 Subaru WRX / STI

    3.4(5)
    $973.14
    Invidia Q300 Twin Outlet Rolled Titanium Burnt Quad Tip Cat-Back Exhaust - 2015-2021 Subaru WRX / STI

    18 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
    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
    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 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 Q300 Resonated Single Exit Catback Exhaust - Stainless Steel Tip - 2015-2021 Subaru WRX / STI

    7 In Stock

    HS15SW4G3S

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

    5.0(1)
    $1,166.20
    AWE Touring Edition Cat-Back Exhaust (Diamond Black Tips) - 2011-2021 Subaru WRX / STI

    8 In Stock

    3015-43108

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

    5.0(1)
    $1,600.00

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