Aftermarket Assassins - Polaris Xpedition ADV / ADV 5 / XP / XP 5 Numatix AA Flashed ECU Outright

AA ECU Flash for 2027 Polaris Xpedition Numatix Models

Unlocked ECU programmed with your selected tune and VIN number. Sold outright for plug-and-play installation. 1-2 business day lead time for programming.

What's Included

• Unlocked ECU outright, pre-programmed with your VIN and selected tune
• Bosch MG1 ECU with advanced "D" security protocol, unlocked by HP Tuners
• Ready to install—no additional tuning device required

Performance Features

• Significant horsepower and torque gains depending on tune level
• Maintains Numatix functionality for smooth low-RPM performance
• Much quicker throttle response and power delivery
• More throttle input in low gear and reverse
• Throttle-by-wire limiters disabled
• Seatbelt speed limiter removed
• Start in any gear (factory allows park only)
• Misfire detection can be disabled (optional safety feature)
• Fan engages at 186/185°F instead of stock 201/200°F
• Speed limiters removed in low and high gears
• Rev limit set to safe 9200 RPM (stock 8500 RPM)

Tune Levels

• Level 1 (91+ Octane / OEM Exhaust): +3-4 RWHP on stock vehicle. Approximately 120 crank horsepower. With S3 clutch kit, gain 8-9 RWHP above OEM. Recommended for bone-stock Xpeditions on 91-93 octane fuel.
• Level 2 (91+ Octane / Aftermarket Exhaust): +7-8 RWHP. Designed for Xpeditions with aftermarket exhaust on 91-93 octane. Tested with AA Dual Suppressor Slip-On Exhaust for maximum power.
• Both levels available in 87 octane versions if needed. 91+ octane recommended for best results on these high-compression engines.

Dyno Results (32" Tires)

• Stock with OEM heavy clutch weights: 80 RWHP estimated
• Stock with 32" tires (light weights, 8300 peak RPM): 96 RWHP
• Stock with cruiser clutch setup: 86 RWHP
• S3 Cruiser clutch kit + Level 1 flash: 88 RWHP
• S3 clutch kit + stock ECU: 100 RWHP
• S3 clutch kit + Level 1 flash: 103 RWHP
• S3 Cruiser clutch kit + exhaust + Level 2 flash: 108 RWHP
• S3 clutch kit + exhaust + Level 2 flash: 110 RWHP

Technical Details

• Engine calibration similar to 2024-26 models with idle and low-speed adjustments to maintain Numatix functionality
• Advanced timing curve optimized for 91 octane fuel
• Modified fuel curve maintains good cruising mileage while enriching at higher throttle inputs
• Clutching highly suggested to achieve best peak RPM and power output
• Verify Evap (50 State/California) or Non-Evap (Standard) model from driver's side wheel well sticker before ordering

Why AA Tunes

AA has been tuning CVT UTV engines since the 800 RZR. Every tune is developed with wheel dyno testing on actual UTV tires, advanced ECU calibration knowledge, and real-world data logging. Supporting modifications are developed in-house to ensure compatibility and performance. Results are backed by extensive trail and facility testing.