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    ← ECU / Tuning
    TST WORX Stage 3 ECU Tune For Kawasaki Ninja 400 2018-2023

    TST Industries

    TST WORX Stage 3 ECU Tune For Kawasaki Ninja 400 2018-2023

    $285.00

    Fits 1 Kawasaki model

    • Ninja 4002018–2023

    Features Stage 3 WORX Tune developed for the following: TST WORX Airbox TST Emission Block Off Kit Graves Motorsports Full System Exhaust (or any other full system exhaust) Provides 5.5% increase in area under the curve Increased rev limit of 12,500 RPM Eliminates OEM air injection system (AIS) Eliminates factory closed loop O2 system Eliminates fuel injector deceleration cut for easier corner entry and braking Remapped fuel tables for cylinders 1 and 2 separately across multiple throttle openings enable a smooth power delivery Remapped ignition timing helps torque production and throttle response Eliminates EVAP system error code after system removal Eliminates gearing fault code when drive chain gear ratios are changed to non-OEM configurations Disables top speed limiter Available for non-ABS and ABS-equipped models Description After completley redesigning the airbox assembly in our quest for podium domination, we optimized the ECU parameters to take full advantage of the new airflow, resulting in our TST WORX Stage 3 ECU Tune. Developed specifically for use with our carbon fiber TST WORX Airbox and an aftermarket full system exhaust, we focused on providing usable power where racers need it most - the top end of the rev range! Pair this tune with the other components and you will have a completely tranformed Ninja 400 ready to take you to the podium! EQUIPMENT REQUIREMENT: This tune MUST be paired with the TST WORX Airbox, TST Emission Block Off Kit, and an aftermarket full system exhaust. Failure to do so will result in poor performance that may fall out of the safe zone of operation. NORTH AMERICAN MARKET ONLY: Please keep in mind that this is only available for North American market Ninja 400 motorcycles ONLY. All orders placed outside of the North American region will be canceled. Premium 91-93 octane fuel is required for expected results and safety against knock. Please note that if your "Check Engine" light is on previous to an ECU tune, the light will remain on after the reflash and must be cleared manually.

    Brand
    TST Industries
    Category
    ECU / Tuning
    Weight
    0.75 lb
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    TST Industries$285.00Buy

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    $250$260$270$280$290$300$310$3205:43 AM11:43 AM5:43 PM11:43 PM5:43 AMTST Industries — $285.00 on 9/27/2026
    TST Industries

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