AA Custom Tuned RTD4 (ECM + TCM Tune) w/ECM Unlock for 2024+ Ranger 1500 (+30hp)

The Aftermarket Assassins Custom Tuned RTD4 delivers AA ECM and TCM tuning with an ECM unlock for the 2024 and newer Polaris Ranger XD 1500. Both modules are flashed because they work together on final torque requests and output.

Why it holds up

• AA ECM and TCM calibration developed over many months and more than 1500 logged miles
• Tuning is limited to 72 MPH on stock tires to stay inside the overdrive limits of the steel belt CVT
• Clutch temp limits, which AA calls the most important, stay in place
• RTD4 lets you flash the ECM, data log engine parameters, read and clear trouble codes, and go back to a stock unlocked file
• Device owners can load AA tune updates as calibrations improve

Fits

• 2024 and newer Polaris Ranger XD 1500 models

In the box

• HP Tuners RTD4
• OBDII to Polaris diagnostic port cable
• Credits to flash the ECM and TCM
• One AA custom ECM tune (more tunes optional)
• AA transmission tune
• TCM flash adapter
• ECU unlock, performed at the HP Tuners facility in Illinois

Good to know

• The ECM must be sent to HP Tuners to be unlocked unless you buy the ECM (and/or TCM) outright. The TCM does not need to be sent in.
• Standard unlock averages 7 to 12 business days. Express unlock (continental US only) averages 5 to 7 business days.
• To keep warranty intact, AA suggests buying the ECM and TCM outright. For the quickest path, AA prefers buying just the ECM outright. Include your VIN in the checkout notes when buying an ECM outright.
• AA suggests 32 to 33 inch tires to reach 80 MPH, and nothing over 33 inches for frequent crawling, since the CVT can still go into limp mode under high load
• Insure the ECU when you ship it. AA is not responsible for shipping delays or lost ECUs.
• An iPhone or Android phone is required to flash