• AA custom tuned Bosch ECU with label for model, tune and customer
  • 2025 Ranger 1000 dyno chart comparing stock with AA Level 1 on 87 and 91 octane
  • 2025 Ranger 1000 dyno chart comparing stock, AA Level 1 91 octane and Level 1 with S3 clutch kit
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Aftermarket Assassins

2025+ Polaris Ranger XP 1000 AA ECU Flash

2025+ Polaris Ranger XP 1000 AA ECU Flash

118-1004

$395.00 USD
$395.00 USD
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Part Number

Final sale. This item is not eligible for return. Return and refund policy

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The AA ECU Flash reprograms the Bosch MG1 ECU on the 2025 and newer Polaris Ranger XP 1000 (82 HP base) for more horsepower, more torque and much quicker throttle response. The ECU is sent to AA and flashed with the tune level you choose.

Why it holds up

  • Level 1 for 87 octane adds 3 RWHP (4 to 5 crank HP). Level 1 for 91 to 93 octane adds 5 RWHP (7 to 8 crank HP), roughly 90 crank HP. With clutching, AA measured 10 to 11 RWHP over OEM.
  • Level 2 for aftermarket exhaust usually adds 8 to 10 HP on 87+ octane and 10 to 12 HP on 91 to 93 octane with the AA exhaust
  • Throttle by wire limiters and 2 foot limits disabled, seatbelt speed limiter removed, start in any gear, and more throttle in low and reverse
  • Speed limiter removed in high (OEM is 62 MPH), low raised to 45 MPH (stock 29) and reverse to 30 MPH (stock 25)
  • Fan on and off at 188/184 degrees Fahrenheit (stock is 203/193) with a quicker fan ramp. Rev limit 8800 RPM (stock is 8000), with ideal peak of 7200 to 7600 RPM at 55 MPH.

Fits

  • 2025 and newer Polaris Ranger XP 1000 (82 HP base), 2 door and Crew
  • 2026 and newer Ranger XP 1000 Cab models

Good to know

  • Misfire detection is desensitized to prevent false misfire codes.
  • Clutching is highly suggested, since OEM clutching falls short of peak RPM with this tune. AA suggests its S3 clutch kit.
  • Level 2 was tested and designed with the AA Slip On Exhaust and should work with most aftermarket exhausts.
  • The drop down asks whether your Ranger has factory HVAC (air and heat).
  • Not sure if your Ranger is an EVAP model? Check the Emissions Control sticker on the front driver side frame rail above the shock. The ECU sticker usually says too.
  • Standard Flash: averages 4 to 10 business days. Instructions for sending the ECU arrive within 1 business day of purchase, the buyer ships the ECU to AA, programming takes 1 to 2 business days, and the ECU returns by your chosen shipping.
  • Express Flash: averages 2 to 3 business days, continental US 48 states only, using a UPS Next Day Air label that AA sends.
  • MG1 PV3 and HP Tuners RTD flash devices are also available but still need the ECU sent to AA for an unlock. See the AA HP Tuners RTD listing for this model.
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