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Circuit Sports

A new product line that branched from an OEM manufacturer of chassis reinforcement and performance products. As an OEM manufacturer, we were subcontracted to build products for well-known Japanese and U.S aftermarket companies.

Now we are pleased to introduce the Circuit Sports products line directly to the U.S. aftermarket industry. Product lines include a full line of chassis reinforcement, suspension and performance accessories. Frequently we bring new products to the US market with fresh ideas and concepts then later transfer the products to other companies under an OEM agreement to be promoted under their name. Many items are designed and produced in cooperation with or for other companies.

We are not a large-scale company like many others in Japan or the US. Nevertheless, we have considerable experience and knowledge in automotive tuning and exercise boutique-style craftsmanship ensuring our customers the highest quality performance part available.

We would like to thank you for visiting us and for your continued support of Circuit Sports and its products.

Click Here to contact us if you have any questions about Circuit Sports products.

 

  • Circuit Sports Windshield Washer Tank Relocation Kit for 1989-05 Mazda Miata NA/NBCircuit Sports
    Circuit Sports Windshield Washer Tank Relocation Kit for 1989-05 Mazda Miata NA/NBCircuit Sports
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    $ 149.00
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    $ 149.00
    $ 134.10
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    $ 134.10

    Circuit Sports Windshield Washer Tank Relocation Kit for 1989-05 Mazda Miata NA/NB

    Circuit Sports
    Low stock

    We usually ship all orders within 1 day unless there is an issue with the order. In that case, we will contact you to find the best solution. ...

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    $ 149.00
    $ 149.00 - $ 149.00
    $ 149.00
    $ 134.10
    $ 134.10 - $ 134.10
    $ 134.10
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  • Circuit Sports R Package Tie Rod Ends for 1990-2005 Mazda Miata MX5 NA/NBCircuit Sports
    Circuit Sports R Package Tie Rod Ends for 1990-2005 Mazda Miata MX5 NA/NBCircuit Sports
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    $ 119.00
    $ 119.00 - $ 119.00
    $ 119.00
    $ 107.10
    $ 107.10 - $ 107.10
    $ 107.10

    Circuit Sports R Package Tie Rod Ends for 1990-2005 Mazda Miata MX5 NA/NB

    Circuit Sports
    In stock

    We usually ship all orders within 1 day unless there is an issue with the order. In that case, we will contact you to find the best solution. ...

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    $ 119.00
    $ 119.00 - $ 119.00
    $ 119.00
    $ 107.10
    $ 107.10 - $ 107.10
    $ 107.10
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  • Circuit Sports Extended Lower Ball Joints for 1990-05 Mazda Miata MX5 NA/NBCircuit Sports
    Circuit Sports Extended Lower Ball Joints for 1990-05 Mazda Miata MX5 NA/NBCircuit Sports
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    $ 129.00
    $ 129.00 - $ 129.00
    $ 129.00
    $ 116.10
    $ 116.10 - $ 116.10
    $ 116.10

    Circuit Sports Extended Lower Ball Joints for 1990-05 Mazda Miata MX5 NA/NB

    Circuit Sports
    Low stock

    We usually ship all orders within 1 day unless there is an issue with the order. In that case, we will contact you to find the best solution. ...

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    $ 129.00
    $ 129.00 - $ 129.00
    $ 129.00
    $ 116.10
    $ 116.10 - $ 116.10
    $ 116.10
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  • Circuit Sports Drift Knob for Mazda MX5 NA/NB/NC - SilverCircuit Sports
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    $ 17.50
    $ 17.50 - $ 17.50
    $ 17.50
    $ 15.75
    $ 15.75 - $ 15.75
    $ 15.75

    Circuit Sports Drift Knob for Mazda MX5 NA/NB/NC - Silver

    Circuit Sports
    Low stock

    - Circuit Sports CNC aluminum drift knob is often used by racers to prevent the e-brake “handle” from locking itself when engaged, enables operatio...

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    $ 17.50
    $ 17.50 - $ 17.50
    $ 17.50
    $ 15.75
    $ 15.75 - $ 15.75
    $ 15.75
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  • Circuit Sports Oil Pan Baffle Plate For 1990-2005 Mazda Miata NA/NB/MSMCircuit Sports
    Circuit Sports Oil Pan Baffle Plate For 1990-2005 Mazda Miata NA/NB/MSMCircuit Sports
    Sold out
    $ 109.00
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    $ 109.00
    $ 98.10
    $ 98.10 - $ 98.10
    $ 98.10

    Circuit Sports Oil Pan Baffle Plate For 1990-2005 Mazda Miata NA/NB/MSM

    Circuit Sports
    Out of stock

    We usually ship all orders within 1 day unless there is an issue with the order. In that case, we will contact you to find the best solution. ...

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    $ 109.00
    $ 109.00 - $ 109.00
    $ 109.00
    $ 98.10
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    $ 98.10
    Sold out
  • Circuit Sports Coolant Overflow Tank Ver.2 for 1989-97 Mazda Miata NACircuit Sports
    Circuit Sports Coolant Overflow Tank Ver.2 for 1989-97 Mazda Miata NACircuit Sports
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    $ 130.00
    $ 130.00 - $ 130.00
    $ 130.00
    $ 117.00
    $ 117.00 - $ 117.00
    $ 117.00

    Circuit Sports Coolant Overflow Tank Ver.2 for 1989-97 Mazda Miata NA

    Circuit Sports
    Low stock

    We usually ship all orders within 1 day unless there is an issue with the order. In that case, we will contact you to find the best solution. ...

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    $ 130.00
    $ 130.00 - $ 130.00
    $ 130.00
    $ 117.00
    $ 117.00 - $ 117.00
    $ 117.00
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  • Circuit Sports Coolant Overflow Tank Ver.2 for 1999-05 Mazda Miata NBCircuit Sports
    Circuit Sports Coolant Overflow Tank Ver.2 for 1999-05 Mazda Miata NBCircuit Sports
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    $ 130.00
    $ 130.00 - $ 130.00
    $ 130.00
    $ 117.00
    $ 117.00 - $ 117.00
    $ 117.00

    Circuit Sports Coolant Overflow Tank Ver.2 for 1999-05 Mazda Miata NB

    Circuit Sports
    Low stock

    We usually ship all orders within 1 day unless there is an issue with the order. In that case, we will contact you to find the best solution. ...

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    $ 130.00
    $ 130.00 - $ 130.00
    $ 130.00
    $ 117.00
    $ 117.00 - $ 117.00
    $ 117.00
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  • Circuit Sports Drift Knob for Mazda MX5 ND - BlueCircuit Sports
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    $ 17.50
    $ 17.50 - $ 17.50
    $ 17.50
    $ 15.75
    $ 15.75 - $ 15.75
    $ 15.75

    Circuit Sports Drift Knob for Mazda MX5 ND - Blue

    Circuit Sports
    Low stock

    We usually ship all orders within 1 day unless there is an issue with the order. In that case, we will contact you to find the best solution. ...

    View full details
    $ 17.50
    $ 17.50 - $ 17.50
    $ 17.50
    $ 15.75
    $ 15.75 - $ 15.75
    $ 15.75
    Save 10% Save %
  • Circuit Sports Drift Knob for Mazda MX5 NA/NB/NC - BlueCircuit Sports
    Sold out
    $ 17.50
    $ 17.50 - $ 17.50
    $ 17.50
    $ 15.75
    $ 15.75 - $ 15.75
    $ 15.75

    Circuit Sports Drift Knob for Mazda MX5 NA/NB/NC - Blue

    Circuit Sports
    Out of stock

    - Circuit Sports CNC aluminum drift knob is often used by racers to prevent the e-brake “handle” from locking itself when engaged, enables operatio...

    View full details
    $ 17.50
    $ 17.50 - $ 17.50
    $ 17.50
    $ 15.75
    $ 15.75 - $ 15.75
    $ 15.75
    Sold out
  • Circuit Sports Drift Knob for Mazda MX5 NA/NB/NC - BlueCircuit Sports
    Save 10% Save %
    $ 17.50
    $ 17.50 - $ 17.50
    $ 17.50
    $ 15.75
    $ 15.75 - $ 15.75
    $ 15.75

    Circuit Sports Drift Knob for Mazda MX5 NA/NB/NC - Blue

    Circuit Sports
    Low stock

    We usually ship all orders within 1 day unless there is an issue with the order. In that case, we will contact you to find the best solution. ...

    View full details
    $ 17.50
    $ 17.50 - $ 17.50
    $ 17.50
    $ 15.75
    $ 15.75 - $ 15.75
    $ 15.75
    Save 10% Save %
  • Circuit Sports Drift Knob for Mazda MX5 NA/NB/NC - RedCircuit Sports
    Save 10% Save %
    $ 17.50
    $ 17.50 - $ 17.50
    $ 17.50
    $ 15.75
    $ 15.75 - $ 15.75
    $ 15.75

    Circuit Sports Drift Knob for Mazda MX5 NA/NB/NC - Red

    Circuit Sports
    Low stock

    We usually ship all orders within 1 day unless there is an issue with the order. In that case, we will contact you to find the best solution. ...

    View full details
    $ 17.50
    $ 17.50 - $ 17.50
    $ 17.50
    $ 15.75
    $ 15.75 - $ 15.75
    $ 15.75
    Save 10% Save %
  • Circuit Sports Drift Knob for Mazda MX5 ND - Gun MetalCircuit Sports
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    $ 17.50
    $ 17.50 - $ 17.50
    $ 17.50
    $ 15.75
    $ 15.75 - $ 15.75
    $ 15.75

    Circuit Sports Drift Knob for Mazda MX5 ND - Gun Metal

    Circuit Sports
    Low stock

    We usually ship all orders within 1 day unless there is an issue with the order. In that case, we will contact you to find the best solution. ...

    View full details
    $ 17.50
    $ 17.50 - $ 17.50
    $ 17.50
    $ 15.75
    $ 15.75 - $ 15.75
    $ 15.75
    Save 10% Save %
  • Circuit Sports Drift Knob for Mazda MX5 ND - RedCircuit Sports
    Save 10% Save %
    $ 17.50
    $ 17.50 - $ 17.50
    $ 17.50
    $ 15.75
    $ 15.75 - $ 15.75
    $ 15.75

    Circuit Sports Drift Knob for Mazda MX5 ND - Red

    Circuit Sports
    Low stock

    We usually ship all orders within 1 day unless there is an issue with the order. In that case, we will contact you to find the best solution. ...

    View full details
    $ 17.50
    $ 17.50 - $ 17.50
    $ 17.50
    $ 15.75
    $ 15.75 - $ 15.75
    $ 15.75
    Save 10% Save %
  • Circuit Sports Drift Knob for Mazda MX5 ND - SilverCircuit Sports
    Save 10% Save %
    $ 17.50
    $ 17.50 - $ 17.50
    $ 17.50
    $ 15.75
    $ 15.75 - $ 15.75
    $ 15.75

    Circuit Sports Drift Knob for Mazda MX5 ND - Silver

    Circuit Sports
    Low stock

    We usually ship all orders within 1 day unless there is an issue with the order. In that case, we will contact you to find the best solution. ...

    View full details
    $ 17.50
    $ 17.50 - $ 17.50
    $ 17.50
    $ 15.75
    $ 15.75 - $ 15.75
    $ 15.75
    Save 10% Save %
  • Circuit Sports Drift Knob for Mazda MX5 NA/NB/NC - Gun MetalCircuit Sports
    Save 10% Save %
    $ 17.50
    $ 17.50 - $ 17.50
    $ 17.50
    $ 15.75
    $ 15.75 - $ 15.75
    $ 15.75

    Circuit Sports Drift Knob for Mazda MX5 NA/NB/NC - Gun Metal

    Circuit Sports
    Low stock

    - Circuit Sports CNC aluminum drift knob is often used by racers to prevent the e-brake “handle” from locking itself when engaged, enables operatio...

    View full details
    $ 17.50
    $ 17.50 - $ 17.50
    $ 17.50
    $ 15.75
    $ 15.75 - $ 15.75
    $ 15.75
    Save 10% Save %
  • Circuit Sports Drift Knob for Mazda MX5 NA/NB/NC - Gun MetalCircuit Sports
    Save 10% Save %
    $ 17.50
    $ 17.50 - $ 17.50
    $ 17.50
    $ 15.75
    $ 15.75 - $ 15.75
    $ 15.75

    Circuit Sports Drift Knob for Mazda MX5 NA/NB/NC - Gun Metal

    Circuit Sports
    Low stock

    We usually ship all orders within 1 day unless there is an issue with the order. In that case, we will contact you to find the best solution. ...

    View full details
    $ 17.50
    $ 17.50 - $ 17.50
    $ 17.50
    $ 15.75
    $ 15.75 - $ 15.75
    $ 15.75
    Save 10% Save %
  • Circuit Sports Drift Knob for Mazda MX5 NA/NB/NC - RedCircuit Sports
    Save 10% Save %
    $ 17.50
    $ 17.50 - $ 17.50
    $ 17.50
    $ 15.75
    $ 15.75 - $ 15.75
    $ 15.75

    Circuit Sports Drift Knob for Mazda MX5 NA/NB/NC - Red

    Circuit Sports
    Low stock

    - Circuit Sports CNC aluminum drift knob is often used by racers to prevent the e-brake “handle” from locking itself when engaged, enables operatio...

    View full details
    $ 17.50
    $ 17.50 - $ 17.50
    $ 17.50
    $ 15.75
    $ 15.75 - $ 15.75
    $ 15.75
    Save 10% Save %
  • Circuit Sports Drift Knob for Mazda MX5 NA/NB/NC - SilverCircuit Sports
    Save 10% Save %
    $ 17.50
    $ 17.50 - $ 17.50
    $ 17.50
    $ 15.75
    $ 15.75 - $ 15.75
    $ 15.75

    Circuit Sports Drift Knob for Mazda MX5 NA/NB/NC - Silver

    Circuit Sports
    Low stock

    We usually ship all orders within 1 day unless there is an issue with the order. In that case, we will contact you to find the best solution. ...

    View full details
    $ 17.50
    $ 17.50 - $ 17.50
    $ 17.50
    $ 15.75
    $ 15.75 - $ 15.75
    $ 15.75
    Save 10% Save %
  • Circuit Sports Drift Knob for Mazda MX5 NA/NB/NC - BlackCircuit Sports
    Circuit Sports Drift Knob for Mazda MX5 NA/NB/NC - BlackCircuit Sports
    Save 10% Save %
    $ 17.50
    $ 17.50 - $ 17.50
    $ 17.50
    $ 15.75
    $ 15.75 - $ 15.75
    $ 15.75

    Circuit Sports Drift Knob for Mazda MX5 NA/NB/NC - Black

    Circuit Sports
    Low stock

    We usually ship all orders within 1 day unless there is an issue with the order. In that case, we will contact you to find the best solution. ...

    View full details
    $ 17.50
    $ 17.50 - $ 17.50
    $ 17.50
    $ 15.75
    $ 15.75 - $ 15.75
    $ 15.75
    Save 10% Save %
  • Circuit Sports Drift Knob for Mazda MX5 NA/NB/NC - BlackCircuit Sports
    Circuit Sports Drift Knob for Mazda MX5 NA/NB/NC - BlackCircuit Sports
    Sold out
    $ 17.50
    $ 17.50 - $ 17.50
    $ 17.50
    $ 15.75
    $ 15.75 - $ 15.75
    $ 15.75

    Circuit Sports Drift Knob for Mazda MX5 NA/NB/NC - Black

    Circuit Sports
    Out of stock

    - Circuit Sports CNC aluminum drift knob is often used by racers to prevent the e-brake “handle” from locking itself when engaged, enables operatio...

    View full details
    $ 17.50
    $ 17.50 - $ 17.50
    $ 17.50
    $ 15.75
    $ 15.75 - $ 15.75
    $ 15.75
    Sold out
  • Circuit Sports Drift Knob for Mazda MX5 ND - BlackCircuit Sports
    Circuit Sports Drift Knob for Mazda MX5 ND - BlackCircuit Sports
    Save 10% Save %
    $ 17.50
    $ 17.50 - $ 17.50
    $ 17.50
    $ 15.75
    $ 15.75 - $ 15.75
    $ 15.75

    Circuit Sports Drift Knob for Mazda MX5 ND - Black

    Circuit Sports
    Low stock

    We usually ship all orders within 1 day unless there is an issue with the order. In that case, we will contact you to find the best solution. ...

    View full details
    $ 17.50
    $ 17.50 - $ 17.50
    $ 17.50
    $ 15.75
    $ 15.75 - $ 15.75
    $ 15.75
    Save 10% Save %
  • Circuit Sports Tie Rod Ends and Extended Lower Ball Joints Set for Miata NA NBCircuit Sports
    Circuit Sports Tie Rod Ends and Extended Lower Ball Joints Set for Miata NA NBCircuit Sports
    Save 10% Save %
    $ 249.00
    $ 249.00 - $ 249.00
    $ 249.00
    $ 224.10
    $ 224.10 - $ 224.10
    $ 224.10

    Circuit Sports Tie Rod Ends and Extended Lower Ball Joints Set for Miata NA NB

    Circuit Sports
    Low stock

    We usually ship all orders within 1 day unless there is an issue with the order. In that case, we will contact you to find the best solution. ...

    View full details
    $ 249.00
    $ 249.00 - $ 249.00
    $ 249.00
    $ 224.10
    $ 224.10 - $ 224.10
    $ 224.10
    Save 10% Save %
  • Circuit Sports Steering Wheel Hub Adapter (55mm) for Mazda Miata NA/NB/NCCircuit Sports
    Circuit Sports Steering Wheel Hub Adapter (55mm) for Mazda Miata NA/NB/NCCircuit Sports
    Save 10% Save %
    $ 119.00
    $ 119.00 - $ 119.00
    $ 119.00
    $ 107.10
    $ 107.10 - $ 107.10
    $ 107.10

    Circuit Sports Steering Wheel Hub Adapter (55mm) for Mazda Miata NA/NB/NC

    Circuit Sports
    Low stock

    We usually ship all orders within 1 day unless there is an issue with the order. In that case, we will contact you to find the best solution. ...

    View full details
    $ 119.00
    $ 119.00 - $ 119.00
    $ 119.00
    $ 107.10
    $ 107.10 - $ 107.10
    $ 107.10
    Save 10% Save %