2024+ RZR XP 1000 AA ECU Flash

The AA ECU Flash reprograms the Bosch MG1 ECU on the 2024 and newer Polaris RZR XP 1000 for more horsepower, more torque and much quicker throttle response. The ECU is sent to AA to be unlocked and flashed with the AA tune level you choose.

Why it holds up

• Level 1 runs on a stock XP 1000 with 91 to 93 octane and adds 5 RWHP (6 crank HP), roughly 120 crank HP
• Level 2 is built for aftermarket exhaust on 91 to 93 octane and adds 7 RWHP peak and 9 RWHP at 30 MPH, roughly 125 crank HP
• Throttle by wire limiters disabled, speed limiter removed in low and high, seatbelt limiter removed, start in any gear with the brake, and more throttle in low and reverse
• Fan on and off at 185/180 degrees Fahrenheit (stock is 205/192). Rev limit 9200 RPM (stock is 8800), with ideal peak of 8400 to 8600 RPM at 55 MPH.
• Misfire detection can be disabled if you choose, to avoid false misfires that trigger limp mode

Fits

• 2024 and newer Polaris RZR XP 1000, 2 and 4 seat
• 2026 and newer Polaris RZR XP 1000 S (72 inch wide), 2 and 4 seat

Good to know

• Level 1 works with an aftermarket exhaust, but Level 2 is the better fit. Level 2 was tested with the AA slip on exhaust. Clutching is highly suggested for the best peak RPM and power.
• Timing is built for ramp up torque, and fueling is corrected over the lean factory AFR on higher throttle inputs. Developed for 91 octane unless stated.
• No programmer can flash the MG1 ECU without an unlock first. For a programmer, see the AA HP Tuners RTD listing for this model.
• The ECU sits behind the driver seat (rear driver side on 4 seats). Remove the top panel behind the seats, then the Torx bolts and the ECU connector. Instructions follow after purchase.
• The ECU must be sent to AA for programming unless you buy a flashed ECU outright. Shipping the ECU to AA is on the buyer, and a shipping label is not included. Express Flash includes a UPS Next Day Air label to AA.
• Programming turnaround varies but is normally 1 to 2 business days.
• Insure the ECU when you ship it. AA is not responsible for shipping delays or lost ECUs.
• Buying an ECU outright lets you keep the stock unit as a spare. List your VIN in the checkout notes.
• AA reads and saves your stock file before flashing. Going back to the OEM tune later is a paid service.
• AA found no real power gain from race fuel tunes, so none are offered.
• EVAP (50 state or California) or Non EVAP: check the sticker in the driver side front wheel well. AA also verifies with the VIN sticker.