Stage 1 – 160 HP 

No Hardware Required

Unlock the full potential of your 900 ACE Turbo with the Precision EFI Stage 1 calibration.

Designed specifically for completely stock snowmobiles, Stage 1 delivers an impressive 160 HP—a 30 HP increase over stock—without requiring a single hardware modification.

Using the factory Bosch MG1 ECU, our calibration improves power delivery, throttle response, and overall rideability while preserving the reliability and advanced engine protection strategies engineered by BRP.

ECU Unlock Service Turnaround: 48 Hours

Stage 1 Benefits

• 160 HP on 91-octane pump fuel
• 30 HP gain over stock
• No additional hardware required
• Perfect upgrade for a completely stock snowmobile
• Sharper, quicker and more precise throttle response
• Improved acceleration throughout the RPM range
• Retains all three factory riding modes: Eco, Standard and Sport
• Maintains equal or better fuel economy than the factory calibration during steady cruising
• Bosch MG1 ECU Unlock Service included
• Lifetime ECU Warranty

Keep the Factory ECU—Keep Factory Reliability

Your 900 ACE Turbo is equipped with the Bosch MG1 ECU, the most advanced engine management system ever installed in a Ski-Doo snowmobile.

Developed through nearly two years of engineering by BRP and Bosch, the MG1 incorporates technologies that are extremely difficult to replicate with aftermarket engine management systems.

Instead of replacing this sophisticated controller, Precision EFI recalibrates your original ECU while preserving every critical factory protection strategy.

You continue to benefit from:

• Advanced Cold Start Technology
• Adaptive knock control
• Real-time ignition adjustments based on fuel quality and octane
• OEM engine protection strategies
• Factory diagnostics
• Excellent cold-weather drivability

The result is a snowmobile that delivers substantially more power while maintaining OEM reliability and refinement.

Why Choose Stage 1?

Stage 1 is the ideal choice for riders who want a noticeable increase in performance without modifying their snowmobile.

With 30 additional horsepower, sharper throttle response, and no additional parts to purchase or install, it's the simplest and most cost-effective way to transform the riding experience.

Important Notes

• 91-octane pump fuel is required.
• Bosch MG1 ECU Unlock Service is included with this package.
• Your ECU is backed by the Precision EFI Lifetime Warranty following the unlock service.

Precision EFI Stage 1 delivers the perfect balance of performance, reliability, and simplicity—160 HP from a completely stock sled, with no hardware modifications required.