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    GrimmSpeed Performance Parts for WRX, STI & More

    305 Results

    GrimmSpeed Boost Control Solenoid - 2007-2013 Mazdaspeed3

    38 In Stock

    057028

    GrimmSpeed Boost Control Solenoid - 2007-2013 Mazdaspeed3

    5.0(3)
    $136.00
    GrimmSpeed Hood Scoop Splitter - 2006-2007 Subaru WRX/STI

    7 In Stock

    093077

    GrimmSpeed Hood Scoop Splitter - 2006-2007 Subaru WRX/STI

    5.0(3)
    $247.00
    GrimmSpeed Radiator Shroud w/ Tool Tray Black - 2002-2007 Subaru WRX/STI

    12 In Stock

    096005

    GrimmSpeed Radiator Shroud w/ Tool Tray Black - 2002-2007 Subaru WRX/STI

    4.6(11)
    $62.00
    Grimmspeed Front Mount Intercooler Kit Black Core w/ Black Piping - 2008-2014 Subaru WRX / STI

    26 In Stock

    090254

    Grimmspeed Front Mount Intercooler Kit Black Core w/ Black Piping - 2008-2014 Subaru WRX / STI

    $1,749.00
    GrimmSpeed Master Cylinder Brace - 2003-2006 Mitsubishi Evo 8/9

    28 In Stock

    091019

    GrimmSpeed Master Cylinder Brace - 2003-2006 Mitsubishi Evo 8/9

    5.0(2)
    $115.00
    GrimmSpeed Radiator Hose Kit Red - Subaru Models (inc. 2008+ STI / 2008-2014 WRX / 2009-2013 Forester XT)

    43 In Stock

    405326

    GrimmSpeed Radiator Hose Kit Red - Subaru Models (inc. 2008+ STI / 2008-2014 WRX / 2009-2013 Forester XT)

    5.0(2)
    $116.00
    GrimmSpeed Radiator Shroud w/ Tool Tray Red - 2008-2014 Subaru WRX/STI

    16 In Stock

    096009

    GrimmSpeed Radiator Shroud w/ Tool Tray Red - 2008-2014 Subaru WRX/STI

    $73.00
    Grimmspeed Stage 1 Power Package - 2008-2014 Subaru STI

    17 In Stock

    191004

    Grimmspeed Stage 1 Power Package - 2008-2014 Subaru STI

    $449.00
    GrimmSpeed Bypass Valve BLACK - 2015-2021 Subaru WRX

    126033BLK

    GrimmSpeed Bypass Valve BLACK - 2015-2021 Subaru WRX

    5.0(1)
    $259.00
    GrimmSpeed Bypass Valve BLACK - 2008-2014 Subaru WRX / 2005-2009 Legacy GT

    3 In Stock

    126034BLK

    GrimmSpeed Bypass Valve BLACK - 2008-2014 Subaru WRX / 2005-2009 Legacy GT

    $259.00
    GrimmSpeed Strut Bar (Red) - 2015-2021 Subaru WRX / STI

    23 In Stock

    GRM1.1029.1.RED

    GrimmSpeed Strut Bar (Red) - 2015-2021 Subaru WRX / STI

    $249.00
    GrimmSpeed Strut Bar (Red) - 2008-2014 Subaru WRX / STI

    8 In Stock

    GRM1.1030.1.RED

    GrimmSpeed Strut Bar (Red) - 2008-2014 Subaru WRX / STI

    $249.00
    GrimmSpeed Post MAF Hose Kit - Red - 2022-2024 Subaru BRZ /Toyota GR86

    36 In Stock

    125033.2

    GrimmSpeed Post MAF Hose Kit - Red - 2022-2024 Subaru BRZ /Toyota GR86

    5.0(2)
    $95.00
    GrimmSpeed Radiator Hose Kit Black - Subaru Models (inc. 2004-2007 STi / 2002-2007 WRX / 2002-2005 Impreza)

    48 In Stock

    405325

    GrimmSpeed Radiator Hose Kit Black - Subaru Models (inc. 2004-2007 STi / 2002-2007 WRX / 2002-2005 Impreza)

    5.0(6)
    $116.00
    GrimmSpeed Strut Bar (Black) - 2022-2025 Subaru WRX

    7 In Stock

    GRM1.1031.1.BLK

    GrimmSpeed Strut Bar (Black) - 2022-2025 Subaru WRX

    $249.00
    GrimmSpeed Front Mount Intercooler Pipe Kit Red - 2015-2021 Subaru STI

    16 In Stock

    090231

    GrimmSpeed Front Mount Intercooler Pipe Kit Red - 2015-2021 Subaru STI

    $774.26
    GrimmSpeed 4-Piston Brake Caliper Kit (340mm Rotor) - Gunmetal Gray - 2002-2021 Subaru WRX / STI

    GRM113422.1113.1.0.GRAY-KIT

    GrimmSpeed 4-Piston Brake Caliper Kit (340mm Rotor) - Gunmetal Gray - 2002-2021 Subaru WRX / STI

    $1,299.00
    GrimmSpeed Dry-Con Performance Panel Air Filter -2022-2024 Subaru BRZ / Toyota GR86

    6 In Stock

    060095

    GrimmSpeed Dry-Con Performance Panel Air Filter -2022-2024 Subaru BRZ / Toyota GR86

    5.0(2)
    $62.00
    GrimmSpeed Intake Manifold Gasket - 2008-2015 Mitsubishi Evo X

    1 In Stock

    020007

    GrimmSpeed Intake Manifold Gasket - 2008-2015 Mitsubishi Evo X

    $17.00
    Grimmspeed Top Mount Intercooler Kit w/ Splitter Black - 2015-2018 Subaru WRX

    20 In Stock

    090071

    Grimmspeed Top Mount Intercooler Kit w/ Splitter Black - 2015-2018 Subaru WRX

    5.0(1)
    $999.00

    Page 1 of 16

    Founded in 2006, GrimmSpeed has established itself as a renowned name in the realm of performance parts, driven by a commitment to innovation and excellence. This company, led by a team of ardent car enthusiasts, was born out of a passion for delivering exceptional aftermarket products. Initially focused on Subaru WRX, GrimmSpeed's expanding team and engineering expertise have propelled it into catering to Mitsubishi, Ford, MazdaSpeed, and Hyundai markets.

    The journey began humbly, operating out of a single-stall townhouse garage in Maplewood, Minnesota. Over time, GrimmSpeed has transformed from a garage startup into a thriving business, offering a diverse range of high-quality products designed to elevate vehicle performance. From intercoolers and exhaust systems to intakes, gaskets, engine pulleys, phenolic spacers, and boost controllers, GrimmSpeed has emerged as a trusted name for automotive enthusiasts.

    GrimmSpeed's decision-making process is guided by three fundamental principles:

    1. Innovation: Innovation is the cornerstone of GrimmSpeed's ethos. Every project undertaken by the company is required to feature at least one groundbreaking element. Whether introducing novel concepts or enhancing existing products, the team at GrimmSpeed is driven by an unwavering passion for creating products that not only function effectively but also leave a lasting impact on the enthusiast community.

    2. Keeping Jobs in America: GrimmSpeed is on a mission to contribute to the revival of manufacturing in the United States. A substantial portion of the company's manufacturing activities occurs within the country, reflecting its commitment to showcasing America's manufacturing prowess to the world. Most of GrimmSpeed's partners are conveniently located in Minnesota, many of them just an hour's drive away. For the company, it's not just about profit margins; it's about making a statement that high-quality products can still be produced on American soil.

    3. Customer Service Excellence: Recognizing the varying standards of customer service in today's world, GrimmSpeed has set out to redefine customer service. When dealing with GrimmSpeed, customers can expect a service that embodies honesty, transparency, and integrity. In the face of product delays, GrimmSpeed refuses to offer vague assurances but instead provides customers with the most up-to-date information available. Should customers require assistance with product installation, they will find GrimmSpeed just a phone call or email away, ready to assist until the issue is resolved. Keeping promises is non-negotiable for GrimmSpeed; when the company commits to calling back, customers can trust that the call will indeed be made.

    Here are a couple featured parts that really show GrimmSpeed's commiment to quality:

    Grimmspeed is famous (well famous in the subaru world) for their Bypass Valves. These come in Black or Red and do not require tuning. 

    Recently GrimmSpeed expanded thier line up of performance parts by adding WRX turbochargers.