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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 Nissan 370Z [Z34] Brake Cooling Kit - STILLEN FRONT BUMPER
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    STILLEN Nissan 370Z [Z34] Brake Cooling Kit - STILLEN FRONT BUMPER - 308960

    STILLEN
    $358.40
    $358.40 - $358.40
    $358.40
    $306.94
    $306.94 - $306.94
    $306.94
    In stock

    Product Features Fits STILLEN 370Z Fascia Only 25% Decrease In Rotor Temps Decrease In Braking Distance and Brake Fade Improved Track Times and L...

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    $358.40
    $358.40 - $358.40
    $358.40
    $306.94
    $306.94 - $306.94
    $306.94
    Save 14% Save %
  • 2003-2008 Infiniti G35 Hi-Flow Air Intake Kit [S50/V35] - Black - 402835
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    2003-2008 Infiniti G35 Hi-Flow Air Intake Kit [S50/V35] - Black - 402835

    STILLEN
    $332.91
    $332.91 - $332.91
    $332.91
    $306.56
    $306.56 - $306.56
    $306.56
    In stock

    Product Features Hi-Flow Intake Kit Includes High Quality STILLEN Washable Oiled Filter w/ Venturi Ring Polyurethane Heat Shield Optional Z-Tube A...

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    $332.91
    $332.91 - $332.91
    $332.91
    $306.56
    $306.56 - $306.56
    $306.56
    Save 8% Save %
  • 2003-2006 350Z STILLEN High Flow Cold Air Intake - 402833
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    2003-2006 350Z Nissan STILLEN High Flow Cold Air Intake - 402833

    STILLEN
    $355.00
    $355.00 - $355.00
    $355.00
    $301.73
    $301.73 - $301.73
    $301.73
    In stock

    2003-2006 350Z Nissan STILLEN High Flow Cold Air Intake - 402833   Product Features: Hi-Flow Intake Kit Includes STILLEN Air Filter w/Venturi Rin...

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    $355.00
    $355.00 - $355.00
    $355.00
    $301.73
    $301.73 - $301.73
    $301.73
    Save 15% Save %
  • STILLEN Rear Wing KB41023
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    2010-2013 Ford Mustang Rear Wing - KB41023

    STILLEN
    $410.97
    $410.97 - $410.97
    $410.97
    $300.81
    $300.81 - $300.81
    $300.81
    In stock

    Product Features 3-Piece Rear Wing Polyurethane Construction - Ready for Prep and Paint Developed and Manufactured In-House Vehicle Specific...

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    $410.97
    $410.97 - $410.97
    $410.97
    $300.81
    $300.81 - $300.81
    $300.81
    Save 27% Save %
  • 2017-2021 Infiniti Q60 3.0t Rear Diffuser [Unpainted] - KB11235
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    2017-2022 Infiniti Q60 3.0t Rear Diffuser [Unpainted] - KB11235

    STILLEN
    $313.21
    $313.21 - $313.21
    $313.21
    $298.05
    $298.05 - $298.05
    $298.05
    In stock

    Product Features Part Comes Pre-Installed with 3M Automotive Tape (Same as OEM uses) No Cutting or Modification to Bumper - Removable Unpainted -...

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    $313.21
    $313.21 - $313.21
    $313.21
    $298.05
    $298.05 - $298.05
    $298.05
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  • 2003-2009 Nissan 350Z / 2003-2007 Infiniti G35 Adjustable Rear Sway Bar Kit

    2003-2009 Nissan 350Z [Z33] / 2003-2007 Infiniti G35 Adjustable Rear Sway Bar Kit SKU# '304352

    STILLEN
    $273.67 - $273.67
    $273.67
    $294.27
    $294.27 - $294.27
    $294.27
    In stock

    2003-2009 Nissan 350Z / 2003-2007 Infiniti G35 Adjustable Rear Sway Bar Kit

    $273.67 - $273.67
    $273.67
    $294.27
    $294.27 - $294.27
    $294.27
  • Nissan 370Z/350Z, InfinitiQ60/ G37/G35 STILLEN Short Throw Shifter - 452352
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    Nissan 370Z/350Z, Infiniti Q60/G37/G35 STILLEN Short Throw Shifter - 452352

    STILLEN
    $343.28
    $343.28 - $343.28
    $343.28
    $293.99
    $293.99 - $293.99
    $293.99
    In stock

    Product Features Reduces Shift Distance by 3/4" 1/4" Shorter in Height Shift Quicker with Less Effort Remains As Quiet As Stock Two-Piece Constru...

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    $343.28
    $343.28 - $343.28
    $343.28
    $293.99
    $293.99 - $293.99
    $293.99
    Save 14% Save %
  • Save 5% Save %

    2015-2017 Subaru WRX / WRX STI Front Splitter - KB23001

    STILLEN
    $300.13
    $300.13 - $300.13
    $300.13
    $285.60
    $285.60 - $285.60
    $285.60
    In stock

    Product Features Front Splitter (Lip Spoiler) Polyurethane Construction Painted Matte Black - Can Also Be Painted Adds Downforce STILLEN Front...

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    $300.13
    $300.13 - $300.13
    $300.13
    $285.60
    $285.60 - $285.60
    $285.60
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  • STILLEN Power Steering Cooler Infiniti G35
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    2003-2009 Nissan 350Z [Z33] / 2003-2007 Infiniti G35 Coupe Power Steering Cooler Kit - 400735

    STILLEN
    $328.99
    $328.99 - $328.99
    $328.99
    $281.76
    $281.76 - $281.76
    $281.76
    In stock

    Product Features Heavy Duty Steering Fluid Cooler Eliminates Chance of Boiling Power Steering Fluid Bolt-On Installation - Instructions Supplied ...

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    $328.99
    $328.99 - $328.99
    $328.99
    $281.76
    $281.76 - $281.76
    $281.76
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  • Save 15% Save %

    2010-2012 Ford Mustang [Rear Valance] - KB410210

    STILLEN
    $325.15
    $325.15 - $325.15
    $325.15
    $276.38
    $276.38 - $276.38
    $276.38
    In stock

    Product Features Rear Valance w/Dual Exhaust Cutouts Fits GT and V6 Models Converted to Dual Exhaust Polyurethane Construction - Ready for Pr...

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    $325.15
    $325.15 - $325.15
    $325.15
    $276.38
    $276.38 - $276.38
    $276.38
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  • Nissan 370Z [Z34] / Infiniti G37, G35, Q40, Q60 Sedan Adjustable Rear Sway Bar Kit - 304365
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    Nissan 370Z [Z34] / Infiniti G37, Q40, Q60 Sedan Adjustable Rear Sway Bar Kit - 304365

    STILLEN
    $297.56
    $297.56 - $297.56
    $297.56
    $274.01
    $274.01 - $274.01
    $274.01
    In stock

    Product Features Rear Sway Bar Kit Reduces Body Roll & Improves Cornering 3-Way Adjustable Rear Bar (37-70% Stiffer) Constructed From Hig...

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    $297.56
    $297.56 - $297.56
    $297.56
    $274.01
    $274.01 - $274.01
    $274.01
    Save 8% Save %
  • Nissan 370Z [Z34] / Infiniti G37, Q40, Q60 Power Steering Cooler Kit - 400736
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    Nissan 370Z [Z34] / Infiniti G37, Q40, Q60 Power Steering Cooler Kit - 400736

    STILLEN
    $316.75
    $316.75 - $316.75
    $316.75
    $271.27
    $271.27 - $271.27
    $271.27
    In stock

    Product Features Heavy Duty Steering Fluid Cooler Eliminates Chance of Boiling Power Steering Fluid Bolt-On Installation - Instructions Supplied V...

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    $316.75
    $316.75 - $316.75
    $316.75
    $271.27
    $271.27 - $271.27
    $271.27
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  • STILLEN Stainless Test Race Pipes 503435
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    2003-2006 Nissan 350Z / 2003-2007 Infiniti G35 Stainless Test Race Pipes SKU# '503435

    STILLEN
    $327.37
    $327.37 - $327.37
    $327.37
    $261.89
    $261.89 - $261.89
    $261.89
    In stock

    STILLEN Stainless Test Race Pipes 503435

    $327.37
    $327.37 - $327.37
    $327.37
    $261.89
    $261.89 - $261.89
    $261.89
    Save 20% Save %
  • 2003-2009 Nissan 350Z / 2003-2007 Infiniti G35 Adjustable Front Sway Bar Kit

    2003-2009 Nissan 350Z [Z33] / 2003-2007 Infiniti G35 Adjustable Front Sway Bar Kit SKU# '304351

    STILLEN
    $242.09 - $242.09
    $242.09
    $260.32
    $260.32 - $260.32
    $260.32
    In stock

    2003-2009 Nissan 350Z / 2003-2007 Infiniti G35 Adjustable Front Sway Bar Kit

    $242.09 - $242.09
    $242.09
    $260.32
    $260.32 - $260.32
    $260.32
  • 2013-2014 Ford Fusion - Front Lip Spoiler - KB41842
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    2013-2014 Ford Fusion - Front Lip Spoiler - KB41842

    STILLEN
    $273.47
    $273.47 - $273.47
    $273.47
    $260.23
    $260.23 - $260.23
    $260.23
    In stock

    Product Features Polyurethane Construction - Ready for Prep and Paint Designed and Manufactured in Southern California In-House Vehicle Specific A...

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    $273.47
    $273.47 - $273.47
    $273.47
    $260.23
    $260.23 - $260.23
    $260.23
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  • Save 5% Save %

    2013-2017 Honda Accord Coupe Rear Diffuser [Unpainted] - KB25002

    STILLEN
    $266.84
    $266.84 - $266.84
    $266.84
    $253.92
    $253.92 - $253.92
    $253.92
    In stock

    Product Features Fits Copue Only! V6 or dual exhaust models only! Unpainted - Ready to Prime and Paint Polyurethane Construction Limited Lif...

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    $266.84
    $266.84 - $266.84
    $266.84
    $253.92
    $253.92 - $253.92
    $253.92
    Save 5% Save %
  • Save 5% Save %

    2013-2017 Honda Accord Coupe Rear Diffuser [Matte Black] - KB25002MB

    STILLEN
    $266.84
    $266.84 - $266.84
    $266.84
    $253.92
    $253.92 - $253.92
    $253.92
    In stock

    Product Features Fits Copue Only! V6 or dual exhaust models only! Painted Matte Black - Ready for Direct Installation Polyurethane Construct...

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    $266.84
    $266.84 - $266.84
    $266.84
    $253.92
    $253.92 - $253.92
    $253.92
    Save 5% Save %
  • Infiniti / Nissan Rear Chicane Series Sport Rotors - Sport Brakes (Akebono) - INF3501CS
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    Infiniti / Nissan Rear Chicane Series Sport Rotors - Sport Brakes (Akebono) - INF3501CS

    STILLEN
    $355.09
    $355.09 - $355.09
    $355.09
    $243.84
    $243.84 - $243.84
    $243.84
    In stock

    Infiniti / Nissan Rear Chicane Series 1-Piece Sport Rotors - Sport Brakes (Akebono Calipers) (Set of 2) - INF3501XS Chicane series rotors by STILL...

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    $355.09
    $355.09 - $355.09
    $355.09
    $243.84
    $243.84 - $243.84
    $243.84
    Save 31% Save %
  • STILLEN Lip Spoiler Hyundai Genesis Coupe
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    2010-2012 Hyundai Genesis Coupe Front Lip Spoiler - KB91022

    STILLEN
    $252.72
    $252.72 - $252.72
    $252.72
    $240.49
    $240.49 - $240.49
    $240.49
    In stock

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

    View full details
    $252.72
    $252.72 - $252.72
    $252.72
    $240.49
    $240.49 - $240.49
    $240.49
    Save 5% Save %
  • 2014-15 Chevy Camaro SS - Front Splitter - KB51042
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    2014-15 Chevy Camaro SS - Front Splitter - KB51042

    STILLEN
    $250.88
    $250.88 - $250.88
    $250.88
    $238.74
    $238.74 - $238.74
    $238.74
    In stock

    Product Features Front Splitter Polyurethane Construction Painted Matte Black - Can Also Be Painted STILLEN Front Bumper Splitter for 2014 Chevro...

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    $250.88
    $250.88 - $250.88
    $250.88
    $238.74
    $238.74 - $238.74
    $238.74
    Save 5% Save %
  • 2009-2019 Nissan 370Z [Z34] STILLEN Roof Wing - KB11124
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    2009-2020 Nissan 370Z [Z34] Roof Wing - KB11124

    STILLEN
    $249.22
    $249.22 - $249.22
    $249.22
    $237.16
    $237.16 - $237.16
    $237.16
    In stock

    Product Features Roof Wing - Attaches at Top of Rear Window Polyurethane Construction - Ready for Prep and Paint Developed and Manufactured In-Hou...

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    $249.22
    $249.22 - $249.22
    $249.22
    $237.16
    $237.16 - $237.16
    $237.16
    Save 5% Save %
  • STILLEN Brake Cooling Kit Nissan GT-R
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    STILLEN Rear Brake Cooling Kit Nissan GT-R 09-15 R35 GTR308396

    STILLEN
    $269.87
    $269.87 - $269.87
    $269.87
    $230.87
    $230.87 - $230.87
    $230.87
    In stock

    STILLEN is proud to offer an active brake cooling option for R35 GT-R owners looking to improve track times and lower brake temperatures. These kit...

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    $269.87
    $269.87 - $269.87
    $269.87
    $230.87
    $230.87 - $230.87
    $230.87
    Save 14% Save %
  • 2010-2013 Chevy Camaro SS Front Lip Spoiler - KB51024
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    2010-2013 Chevy Camaro SS Front Lip Spoiler - KB51024

    STILLEN
    $236.63
    $236.63 - $236.63
    $236.63
    $225.17
    $225.17 - $225.17
    $225.17
    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
    $236.63
    $236.63 - $236.63
    $236.63
    $225.17
    $225.17 - $225.17
    $225.17
    Save 5% Save %
  • Save 5% Save %

    2010-2013 Chevy Camaro Rear Wing - KB51023

    STILLEN
    $232.41
    $232.41 - $232.41
    $232.41
    $221.17
    $221.17 - $221.17
    $221.17
    In stock

    Product Features 3-Piece Rear Wing Polyurethane Construction - Ready for Prep and Paint Developed and Manufactured In-House Vehicle Specific...

    View full details
    $232.41
    $232.41 - $232.41
    $232.41
    $221.17
    $221.17 - $221.17
    $221.17
    Save 5% Save %

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