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Challenger ECU tune

Your Challenger

Pick your year to see what fits.

This page covers the 2008–2023 Challenger.

+10–40 whp (est.)
Medium$400–$1,10030–90 min
All Challenger mods

Why do it

A tuner loads a better map, with sharper throttle and shifts and more power.

Tools you'll need

Starting out? See our budget tool list.

Parts to buy

Double-check fitment before buying. We may earn a commission when you buy through these links, at no extra cost to you.

Before you start

  • Connect a battery charger if you can. A low battery during a tune can cause real problems.
  • Never turn off the car or unplug the tuner during a tune.
  • Connect a battery charger if you can. A low battery during a tune can cause real problems.
  • Never turn off the car or unplug the tuner during a tune.
  • Connect a battery charger if you can. A low battery during a tune can cause real problems.
  • Never turn off the car or unplug the tuner during a tune.

Steps

  1. Plug it in

    • Plug the tuner into the port under the dash.
    Watch this step (AmericanMuscle, on a 5.7L; the same tuner) (3:22–3:49)

  2. Load the tune

    • Follow the screen, save your stock tune and load the new one.
    Watch this step (3:49–10:31)

  3. Update the tuner

    • Connect the tuner to your computer and update it.
    Watch this step (Diablosport i3 on a Challenger SRT8) (4:02–5:55)

  4. Load the tune

    • Plug into the car and follow the screen.
    Watch this step (5:55–10:44)

  5. Adjust the settings

    • Change the options you want.
    Watch this step (10:44–12:50)

  6. Remove the old computer

    • Disconnect the battery and take out the factory computer.
    Watch this step (on a 2015 Scat Pack) (3:33–6:05)

  7. Install the new computer

    • Fit the included swap computer and plug it in.
    Watch this step (6:05–8:50)

  8. Finish the install

    • Bolt it down and reconnect the battery.
    Watch this step (8:50–10:48)

  9. Back up the stock tune

    • Follow the screen to save your stock tune.
    Watch this step (10:48–12:56)

  10. Write the new tune

    • Load the new tune and let it finish.
    Watch this step (12:56–15:28)

How to know it worked

Did this guide work for you?

Safety first

  • Park on flat ground, set the parking brake and chock the wheels.
  • Never get under a car held up only by a jack. Use jack stands.
  • Let the engine and exhaust cool first.
  • Disconnect the battery before unplugging electrical parts.
  • Wear safety glasses.
  • If something doesn't match your car, stop and ask a shop.

Follow your part's instructions and your service manual's torque specs.