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Product availability may vary, and some items may be on backorder from the manufacturer. You can contact us via the Contact Page or email us at info@holyhorsepower.co.
Product availability may vary, and some items may be on backorder from the manufacturer. You can contact us via the Contact Page or email us at info@holyhorsepower.co.

STILLEN

Steve Millen Racing

STILLEN® founder Steve Millen has been racing across the globe as a professional driver for over 30 years. From Formula Fords in Singapore, Rally Cars in Africa, Trucks in football stadiums, to Nissan Prototypes at Le Mans and the 24 Hours of Daytona; these are just some of Steve's victory credits. Steve captured the prestigious IMSA GT Driver's Championship in both 1992 and 1994 driving his Cunningham Racing prepared Nissan 300ZX Twin Turbo racecar. His lengthy list of wins has made him "The All Time Winningest Driver in IMSA GT History" a title that may remain intact for decades to come.

STILLEN - Who We Are

Steve Millen’s racing experience has influenced every aspect of STILLEN’s business. A fundamental part of success in racing rests in the ability to continually refine performance by a program of modification and testing; throughout the years, this has been Steve Millen's forte. Steve has been sought after for testing by such enthusiast magazines as Road & Track where you will often see his name or byline when they are testing the most powerful and exotic sports cars in the world. STILLEN builds and sell parts that are tested and proven to work following a regiment of testing and refinement;  Professional product evaluation in real-world driving situations gives STILLEN a distinct advantage. Car & Driver, Road & Track, Motor Trend, Automobile, AutoWeek, /Drive, DSport, The Smoking Tire, and Super Street have all reviewed and tested STILLEN products and project vehicles, and provided rave reviews

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  • STILLEN Bumper Cover Spoiler - Generation 4 KA2511
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    Chevy / GMC Truck Bumper Cover Spoiler - Generation 4 SKU# KA2511

    STILLEN
    $449.28
    $449.28 - $449.28
    $449.28
    $314.48
    $314.48 - $314.48
    $314.48
    In stock

    Generation 4; Uses (2) 3" x 5" Lights; Type I - Uses (2) 3" x 5" Lights; Chevy / GMC Truck Bumper Cover Spoiler - Generation 4; STILLEN; STIBMPCVR0...

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    $449.28
    $449.28 - $449.28
    $449.28
    $314.48
    $314.48 - $314.48
    $314.48
    Save 30% Save %
  • STILLEN Bumper Cover Spoiler - Version 5 KA2911
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    Chevy / GMC Truck Bumper Cover Spoiler - Version 5 SKU# KA2911

    STILLEN
    $449.28
    $449.28 - $449.28
    $449.28
    $314.48
    $314.48 - $314.48
    $314.48
    In stock

    Version 5 Bumper Cover Spoiler Uses (2) 3" x 5" Lights; Polyurethane Construction - Ready for Prep and Paint; Developed and Manufactured In-House; ...

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    $449.28
    $449.28 - $449.28
    $449.28
    $314.48
    $314.48 - $314.48
    $314.48
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  • 2003-2008 Infiniti FX35 & Infiniti FX45 Front Strut Tower Brace | STILLEN 307435
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    2003-2008 Infiniti FX35, FX45 Front Strut Tower Brace SKU# '307435

    STILLEN
    $388.19
    $388.19 - $388.19
    $388.19
    $313.64
    $313.64 - $313.64
    $313.64
    In stock

    2003-2008 Infiniti FX35 & Infiniti FX45 Front Strut Tower Brace | STILLEN 307435

    $388.19
    $388.19 - $388.19
    $388.19
    $313.64
    $313.64 - $313.64
    $313.64
    Save 19% Save %
  • +2020 Chevrolet Silverado/GMC Sierra [2500/3500] TruPower by STILLEN Cold Air Intake Scoop - TP403502
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    +2020 Chevrolet Silverado/GMC Sierra [2500/3500] TruPower by STILLEN Cold Air Intake Scoop - TP403502

    STILLEN
    $373.05
    $373.05 - $373.05
    $373.05
    $313.63
    $313.63 - $313.63
    $313.63
    In stock

       Features and benefits: Made in USA Limited lifetime warranty Direct cold air flow Reduced intake air temperatures Compatible with any air inta...

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    $373.05
    $373.05 - $373.05
    $373.05
    $313.63
    $313.63 - $313.63
    $313.63
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  • Underdrive Performance Lightweight Crank Pulley for 1990-1996 Nissan 300ZX
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    1990-1996 Nissan 300ZX [Z32] Underdrive Performance Lightweight Crank Pulley SKU# '400339

    STILLEN
    $359.20
    $359.20 - $359.20
    $359.20
    $305.33
    $305.33 - $305.33
    $305.33
    In stock

    This item has been discontinued. ¦ Underdrive Performance Lightweight Crank Pulley for 1990-1996 Nissan 300ZX

    $359.20
    $359.20 - $359.20
    $359.20
    $305.33
    $305.33 - $305.33
    $305.33
    Save 15% Save %
  • STILLEN Bumper Cover Spoiler - Generation 2 KA2511P
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    Chevy / GMC Truck Bumper Cover Spoiler - Generation 2 SKU# KA2511P

    STILLEN
    $436.20
    $436.20 - $436.20
    $436.20
    $305.31
    $305.31 - $305.31
    $305.31
    In stock

    Generation 2; Uses (2) 3.75" x 9.75" Lights; Type III - Uses (2) 3.75" x 9.75" Lights; Chevy / GMC Truck Bumper Cover Spoiler - Generation 2; STILL...

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    $436.20
    $436.20 - $436.20
    $436.20
    $305.31
    $305.31 - $305.31
    $305.31
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  • Standard Performance Lightweight Crank Pulley for Nissan 350Z / Infiniti FX35, G35, M35
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    Nissan 350Z [Z33] / Infiniti FX35, G35, M35 Standard Performance Lightweight Crank Pulley SKU# '400337

    STILLEN
    $351.35
    $351.35 - $351.35
    $351.35
    $300.91
    $300.91 - $300.91
    $300.91
    In stock

    Standard Performance Lightweight Crank Pulley for Nissan 350Z / Infiniti FX35, G35, M35

    $351.35
    $351.35 - $351.35
    $351.35
    $300.91
    $300.91 - $300.91
    $300.91
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  • 2009-2012 Nissan 370Z [Z34] Front Splitter - KB111215
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    2009-2012 Nissan 370Z [Z34] Front Splitter - KB111215

    STILLEN
    $315.26
    $315.26 - $315.26
    $315.26
    $300.00
    $300.00 - $300.00
    $300.00
    In stock

    Overview Product Features Front Splitter (Lip Spoiler) - Designed for OE Bumper Only Polyurethane Construction Painted Matte Black - Can Also Be P...

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    $315.26
    $315.26 - $315.26
    $315.26
    $300.00
    $300.00 - $300.00
    $300.00
    Save 5% Save %
  • 2019-2022 Chevy Silverado 1500 TruPower by STILLEN Cold Air Intake Scoop - TP403501
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    2019-2024 Chevy Silverado 1500 TruPower by STILLEN Cold Air Intake Scoop - TP403501

    STILLEN
    $358.84
    $358.84 - $358.84
    $358.84
    $299.36
    $299.36 - $299.36
    $299.36
    In stock

       *NOTE: As of February 15, 2022 this product is compatible with the active aero shutters.  Year: 2019, 2020, 2021, 2021, 2022, 2023, 2024 Make: ...

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    $358.84
    $358.84 - $358.84
    $358.84
    $299.36
    $299.36 - $299.36
    $299.36
    Save 17% Save %
  • 2019-2022 GMC Sierra 1500 TruPower by STILLEN Cold Air Intake Scoop - TP403503
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    2019-2024 GMC Sierra 1500 TruPower by STILLEN Cold Air Intake Scoop - TP403503

    STILLEN
    $357.93
    $357.93 - $357.93
    $357.93
    $299.36
    $299.36 - $299.36
    $299.36
    In stock

     Year 2019, 2020, 2021, 2022, 2023, 2024 Make GMC Sierra Model 1500 Features and benefits: Made in USA Limited lifetime warranty Direct cold air ...

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    $357.93
    $357.93 - $357.93
    $357.93
    $299.36
    $299.36 - $299.36
    $299.36
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  • STILLEN Bumper Cover - Generation 1 KA2005
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    Chevy S10, S10 Blazer / GMC S15, Sonoma Bumper Cover - Generation 1 SKU# KA2005

    STILLEN
    $427.97
    $427.97 - $427.97
    $427.97
    $298.66
    $298.66 - $298.66
    $298.66
    In stock

    Generation 1; Chevy S10, S10 Blazer / GMC S15, Sonoma Bumper Cover - Generation 1; STILLEN; STIBMPCVR01; Exterior; Bumpers; STI; Exterior/Body Styl...

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    $427.97
    $427.97 - $427.97
    $427.97
    $298.66
    $298.66 - $298.66
    $298.66
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  • 2010-2013 Chevy Camaro 3.6L Front Splitter - KB51122
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    2010-2013 Chevy Camaro 3.6L Front Splitter - KB51122

    STILLEN
    $311.65
    $311.65 - $311.65
    $311.65
    $296.56
    $296.56 - $296.56
    $296.56
    In stock

    Product Features Front Splitter Polyurethane Construction Painted Matte Black - Can Also Be Painted STILLEN 2010-2013 Chevy Camaro 3.6L Front Spl...

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    $311.65
    $311.65 - $311.65
    $311.65
    $296.56
    $296.56 - $296.56
    $296.56
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  • 2009-2020 Nissan 370Z [Z34] Mesh Grille Insert [STILLEN Fascia] - KB11121LG
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    2009-2020 Nissan 370Z [Z34] Mesh Grille Insert [STILLEN Fascia] - KB11121LG

    STILLEN
    $320.92
    $320.92 - $320.92
    $320.92
    $296.52
    $296.52 - $296.52
    $296.52
    In stock

    Product Features 3-Piece Mesh Grille for STILLEN Fascia Only Black Powdercoated For Durability Covers Side Scoops and Large Main Opening   STI...

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    $320.92
    $320.92 - $320.92
    $320.92
    $296.52
    $296.52 - $296.52
    $296.52
    Save 8% Save %
  • 2008-2013 Infiniti G37 Coupe / 2014-2015 Q60 Rear Trunk Spoiler - KB11923
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    2008-2013 Infiniti G37 Coupe / 2014-2015 Q60 Rear Trunk Spoiler - KB11923

    STILLEN
    $310.10
    $310.10 - $310.10
    $310.10
    $295.09
    $295.09 - $295.09
    $295.09
    In stock

    Product Features Rear Deck Wing - Attaches Without Drilling Covers Chrome Lip Polyurethane Construction - Ready for Prep and Paint Developed ...

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    $310.10
    $310.10 - $310.10
    $310.10
    $295.09
    $295.09 - $295.09
    $295.09
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  • Save 15% Save %

    2003-2006 Nissan 350Z [Z33] / 2003-2007 Infiniti G35 High Capacity Aluminum Oil Pan - 401140

    STILLEN
    $340.79
    $340.79 - $340.79
    $340.79
    $291.19
    $291.19 - $291.19
    $291.19
    In stock

    Product Features Cast and Machined Aluminum Oil Pan Increases Oil Capacity by 1 Quart Easy Installation With Basic Hand Tools and Includes Permate...

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    $340.79
    $340.79 - $340.79
    $340.79
    $291.19
    $291.19 - $291.19
    $291.19
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  • STILLEN Supercharger
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    Nissan 370Z [Z34] / Infiniti G37, Q40, Q60 Supercharger Tuned Engine Cover

    STILLEN
    $342.34
    $342.34 - $342.34
    $342.34
    $290.99
    $290.99 - $290.99
    $290.99
    In stock

    Product Features Urethane Fits RWD & AWD Models Overview STILLEN Supercharger Engine Cover for Nissan 370Z, Z34, Infiniti G37, Q40, Q60 Œ...

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    $342.34
    $342.34 - $342.34
    $342.34
    $290.99
    $290.99 - $290.99
    $290.99
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  • 2010-2012 Ford Mustang Front Lip Spoiler - KB41522
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    2010-2012 Ford Mustang Front Lip Spoiler - KB41522

    STILLEN
    $292.52
    $292.52 - $292.52
    $292.52
    $278.36
    $278.36 - $278.36
    $278.36
    In stock

    Product Features Front Lip Spoiler Polyurethane Construction - Ready for Prep and Paint Developed and Manufactured In-House Vehicle Specific Appli...

    View full details
    $292.52
    $292.52 - $292.52
    $292.52
    $278.36
    $278.36 - $278.36
    $278.36
    Save 5% Save %
  • 2013-2014 Ford Mustang Front Lip Spoiler - KB41722
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    2013-2014 Ford Mustang Front Lip Spoiler - KB41722

    STILLEN
    $291.83
    $291.83 - $291.83
    $291.83
    $277.70
    $277.70 - $277.70
    $277.70
    In stock

    Product Features Front Lip Spoiler Polyurethane Construction - Ready for Prep and Paint Developed and Manufactured In-House Vehicle Specific Appl...

    View full details
    $291.83
    $291.83 - $291.83
    $291.83
    $277.70
    $277.70 - $277.70
    $277.70
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  • 2005-2009 Ford Mustang GT & 2007-2009 Ford GT500 Sway Bar Kit | STILLEN 304100
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    2005-2009 Ford Mustang GT / GT500 Sway Bar Kit - Adjustable Front / Non-Adjustable Rear SKU# '304100

    STILLEN
    $549.59
    $549.59 - $549.59
    $549.59
    $275.71
    $275.71 - $275.71
    $275.71
    In stock

    2005-2009 Ford Mustang GT & 2007-2009 Ford GT500 Sway Bar Kit | STILLEN 304100

    $549.59
    $549.59 - $549.59
    $549.59
    $275.71
    $275.71 - $275.71
    $275.71
    Save 50% Save %
  • STILLEN Bumper Cover Spoiler - Generation 1 KA2505
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    Chevy / GMC Truck Bumper Cover Spoiler - Generation 1 SKU# KA2505

    STILLEN
    $449.28
    $449.28 - $449.28
    $449.28
    $274.96
    $274.96 - $274.96
    $274.96
    In stock

    Generation 1; Chevy / GMC Truck Bumper Cover Spoiler - Generation 1; STILLEN; STIBMPCVR01; Exterior; Bumpers; STI; Exterior/Body Styling/Bumper Cov...

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    $449.28
    $449.28 - $449.28
    $449.28
    $274.96
    $274.96 - $274.96
    $274.96
    Save 39% Save %
  • STILLEN Roll Pan - Generation 1 KA2528
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    Chevy C3500, K3500 / GMC C1500, C2500, C3500, K1500, K2500, K3500 Roll Pan - Generation 1 SKU# KA2528

    STILLEN
    $369.22
    $369.22 - $369.22
    $369.22
    $273.38
    $273.38 - $273.38
    $273.38
    In stock

    Urethane ; Generation 1 Roll Pan; Chevy C3500, K3500 / GMC C1500, C2500, C3500, K1500, K2500, K3500 Roll Pan - Generation 1; STILLEN; STIRLPN01; Ex...

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    $369.22
    $369.22 - $369.22
    $369.22
    $273.38
    $273.38 - $273.38
    $273.38
    Save 26% Save %
  • 2009-2012 Nissan GT-R STILLEN Mud Flap Kit [Front] - GTRKB128214F
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    2009-2012 Nissan GT-R Mud Flap Kit [Front] - GTRKB128214F

    STILLEN
    $284.82
    $284.82 - $284.82
    $284.82
    $271.03
    $271.03 - $271.03
    $271.03
    In stock

    2009-2012 Nissan GT-R R35 Mud Flap Kit [Front] - GTRKB128214F Front Mud Flap Kit - Pair (Driver and Passenger Sides) Solid Polyurethane Constructi...

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    $284.82
    $284.82 - $284.82
    $284.82
    $271.03
    $271.03 - $271.03
    $271.03
    Save 5% Save %
  • 2015-2018 Subaru WRX, WRX STI Sedan STILLEN Rear Trunk Spoiler - KB23003
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    2015-2018 Subaru WRX, WRX STI Sedan Rear Trunk Spoiler - KB23003

    STILLEN
    $277.54
    $277.54 - $277.54
    $277.54
    $264.10
    $264.10 - $264.10
    $264.10
    In stock

    2015-2018 Subaru WRX, WRX STI Sedan Rear Trunk Spoiler - KB23003 Rear Deck Spoiler - Attaches Without Drilling Polyurethane Construction - Ready f...

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    $277.54
    $277.54 - $277.54
    $277.54
    $264.10
    $264.10 - $264.10
    $264.10
    Save 5% Save %
  • 2014 Chevy Camaro Roof Wing | STILLEN KB51046
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    2010-2015 Chevy Camaro Roof Wing - KB51046

    STILLEN
    $276.59
    $276.59 - $276.59
    $276.59
    $258.21
    $258.21 - $258.21
    $258.21
    In stock

    Product Features Roof Wing - Attaches at Top of Rear Window Polyurethane Construction - Ready for Prep and Paint Vehicle Specific Applicatio...

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    $276.59
    $276.59 - $276.59
    $276.59
    $258.21
    $258.21 - $258.21
    $258.21
    Save 7% Save %

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