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    Ignition Systems

    If you have big air and tons of fuel getting shoved into your intake, you better have the ignition system to light it all off or you are going to get a whole lot of nothing. Yes, you can actually blow out the spark if you don't have the right parts in place. Don't be that guy who sputters at the top end and watch that other guy drive out of your life. Get a solid performance ignition system for that high power Subaru WRX/STI, with upgraded coil packs, spark plug boots and spark plug sets. Air, Fuel, Spark. You must have it all!

    Shop Ignition Systems Upgrades by Category

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    Spark Plugs

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    Coil Packs

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    32 Results

    NGK Iridium Spark Plugs One Step Colder 2309 - Subaru EJ25 Turbo Models (inc. 2004-2021 STI / 2006-2014 WRX)

    LFR7AIX-GRP

    NGK Iridium Spark Plugs One Step Colder 2309 - Subaru EJ25 Turbo Models (inc. 2004-2021 STI / 2006-2014 WRX)

    4.9(36)
    $73.24
    NGK Iridium Spark Plug One Step Colder 2309 - Subaru EJ25 Turbo Models (inc. 2004-2021 STI / 2006-2014 WRX)

    LFR7AIX

    NGK Iridium Spark Plug One Step Colder 2309 - Subaru EJ25 Turbo Models (inc. 2004-2021 STI / 2006-2014 WRX)

    5.0(22)
    $10.51
    NGK Iridium Spark Plug One Step Colder 2667 - 2002-2005 Subaru WRX

    BKR7EIX

    NGK Iridium Spark Plug One Step Colder 2667 - 2002-2005 Subaru WRX

    5.0(6)
    $10.51
    NGK Iridium Spark Plugs One Step Colder 2667 - 2002-2005 Subaru WRX

    BKR7EIX-GRP

    NGK Iridium Spark Plugs One Step Colder 2667 - 2002-2005 Subaru WRX

    4.7(10)
    $73.24
    NGK Iridium Spark Plug Stock Heat Range 6418 - 2002-2005 Subaru WRX

    BKR6EIX

    NGK Iridium Spark Plug Stock Heat Range 6418 - 2002-2005 Subaru WRX

    5.0(4)
    $10.51
    NGK Laser Iridium Stock Heat Range Spark Plug Set - 2015-2021 Subaru WRX / 2014-2016 Forester XT

    ILKAR8H6-GRP

    NGK Laser Iridium Stock Heat Range Spark Plug Set - 2015-2021 Subaru WRX / 2014-2016 Forester XT

    5.0(7)
    $118.56
    NGK Iridium Spark Plugs Stock Heat Range 6418 - 2002-2005 Subaru WRX

    BKR6EIX-GRP

    NGK Iridium Spark Plugs Stock Heat Range 6418 - 2002-2005 Subaru WRX

    5.0(2)
    $77.80
    Off the Line Performance Street Series Ignition Coil Set - Subaru Models (Inc. 2004-2014 WRX / 2004-2021 STI / 1989-1993 Legacy GT / Legacy RS / Legacy RS-RA)

    -SSEJ-4

    Off the Line Performance Street Series Ignition Coil Set - Subaru Models (Inc. 2004-2014 WRX / 2004-2021 STI / 1989-1993 Legacy GT / Legacy RS / Legacy RS-RA)

    3.8(4)
    $449.00
    NGK Iridium Spark Plug Stock Heat Range 1422 - 2008-2015 Mitsubishi Evo X

    1 In Stock

    ILKR8E6

    NGK Iridium Spark Plug Stock Heat Range 1422 - 2008-2015 Mitsubishi Evo X

    5.0(2)
    $15.64
    NGK Iridium Spark Plug Stock Heat Range 5245 - 2006 Mitsubishi Evo 9

    7 In Stock

    ILFR7H

    NGK Iridium Spark Plug Stock Heat Range 5245 - 2006 Mitsubishi Evo 9

    5.0(1)
    $16.21
    Subaru OEM NGK Spark Plug - Subaru Models (inc. 2008-2018 STI / 2008-2014 WRX)

    22401AA670

    Subaru OEM NGK Spark Plug - Subaru Models (inc. 2008-2018 STI / 2008-2014 WRX)

    4.3(3)
    $21.68
    NGK Iridium Spark Plug Stock Heat Range - 2015-2021 Subaru WRX / 2014-2016 Forester XT

    ILKAR8H6

    NGK Iridium Spark Plug Stock Heat Range - 2015-2021 Subaru WRX / 2014-2016 Forester XT

    4.0(1)
    $16.69
    NGK Iridium Spark Plugs Stock Heat Range 1422 - 2008-2015 Mitsubishi Evo X

    ILKR8E6-GRP

    NGK Iridium Spark Plugs Stock Heat Range 1422 - 2008-2015 Mitsubishi Evo X

    4.0(3)
    $116.24
    NGK Iridium Spark Plugs Stock Heat Range 5245 - 2006 Mitsubishi Evo 9

    1 In Stock

    ILFR7H-GRP

    NGK Iridium Spark Plugs Stock Heat Range 5245 - 2006 Mitsubishi Evo 9

    $48.24
    Subaru OEM NGK Spark Plug - 2015-2021 Subaru WRX / 2014-2018 Forester XT

    1 In Stock

    22401AA830

    Subaru OEM NGK Spark Plug - 2015-2021 Subaru WRX / 2014-2018 Forester XT

    $35.10
    Torque Solution Coil Pack Adapter - 2000-2005 Audi S4/A6 2.7T

    TS-VW-017

    Torque Solution Coil Pack Adapter - 2000-2005 Audi S4/A6 2.7T

    $102.22
    Off the Line Performance Coil Adapter Harness Set - 2013-2016 Scion FR-S / Subaru BRZ

    COIL-ADAPTER-4

    Off the Line Performance Coil Adapter Harness Set - 2013-2016 Scion FR-S / Subaru BRZ

    $79.99
    IAG Performance Subaru Rear Coil Pack Replacement Connector - Subaru Models (inc. 2004-2010 STI / 2002-2010 WRX)

    3 In Stock

    IAG-WIR-3000BK

    IAG Performance Subaru Rear Coil Pack Replacement Connector - Subaru Models (inc. 2004-2010 STI / 2002-2010 WRX)

    $26.99
    IAG Performance Subaru Front Coil Pack Replacement Connector - Subaru Models (inc. 2004-2010 STI / 2002-2010 WRX)

    5 In Stock

    IAG-WIR-3000WH

    IAG Performance Subaru Front Coil Pack Replacement Connector - Subaru Models (inc. 2004-2010 STI / 2002-2010 WRX)

    $26.99
    NGK Iridium Spark Plug One Step Colder 5044 - 2003-2005 Mitsubishi Evo 8

    10 In Stock

    BR8EIX

    NGK Iridium Spark Plug One Step Colder 5044 - 2003-2005 Mitsubishi Evo 8

    $10.14

    Page 1 of 2

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    GrimmSpeed Stock Downpipe to 3inch Exhaust Adapter - Subaru Models

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    GrimmSpeed Stock Downpipe to 3inch Exhaust Adapter - Subaru Models

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    Subaru OEM Donut Gasket - Subaru EJ Models (inc. 2004-2021 STI / 2002-2014 WRX)

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    Subaru OEM Donut Gasket - Subaru EJ Models (inc. 2004-2021 STI / 2002-2014 WRX)

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    Koyo Aluminum Racing Radiator Manual Transmission - 2003-2007 Subaru WRX / STI

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    Koyo Aluminum Racing Radiator Manual Transmission - 2003-2007 Subaru WRX / STI

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    GrimmSpeed GS/OEM Subaru Crank Pulley Removal/Installation Tool - Subaru Models

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    GrimmSpeed GS/OEM Subaru Crank Pulley Removal/Installation Tool - Subaru Models

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    COBB Tuning Accessport V3 - 2015-2021 Subaru WRX / STI / 2014-2018 Forester XT

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    COBB Tuning Accessport V3 - 2015-2021 Subaru WRX / STI / 2014-2018 Forester XT

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

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    Subaru OEM Thermostat - Subaru EJ Models (inc. 2004-2021 STI / 2002-2014 WRX)

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    Koyo 1.3 Bar High Pressure Radiator Cap Hyper Red - Subaru / Mitsubishi / Nissan (inc. 2015-2021 Subaru WRX / STI / 2009-2018 Nissan GT-R / 2008-2015 Mitsubishi Lancer)

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    Koyo 1.3 Bar High Pressure Radiator Cap Hyper Red - Subaru / Mitsubishi / Nissan (inc. 2015-2021 Subaru WRX / STI / 2009-2018 Nissan GT-R / 2008-2015 Mitsubishi Lancer)

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    Injector Dynamics Fuel Injector PnP Adapter USCAR to Denso - Universal

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    Injector Dynamics Fuel Injector PnP Adapter USCAR to Denso - Universal

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    COBB Tuning 15MM Blue Urethane Exhaust Hanger Standard Length - Subaru Models (inc. 1993-2007 Impreza / WRX / STI)

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    COBB Tuning 15MM Blue Urethane Exhaust Hanger Standard Length - Subaru Models (inc. 1993-2007 Impreza / WRX / STI)

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    $20.00

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