Agency Power ECU Flash Tune for Polaris RZR RS1
SKU: AP-RZRRS1-ECU
Race-Only Performance Tuning | Available at SideBySideSports.com
Unlock Maximum Power from Your Polaris RS1
Take your Polaris RZR RS1 to the next level with the Agency Power Tuned ECU Flash—an essential upgrade for serious off-road riders and competitive racers. This performance ECU reflash is engineered specifically for the Bosch ME17.9.74 ECU, delivering instant gains in horsepower, throttle response, and overall drivability.
Designed for closed-course racing and off-road performance only, this ECU upgrade provides the power and control demanded by high-performance UTV builds.
Key Performance Benefits
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Increase Horsepower: Boosts factory output from 110 HP to 123 HP
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Improved Throttle Response: Enhanced electronic throttle control for faster reaction times
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Speed & Rev Limiters Removed: Achieve top performance across the RPM range
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Lower Fan Activation Temp: Keeps your RS1 cooler under intense riding conditions
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Left-Foot Braking Enabled: Ideal for advanced driving techniques in racing
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Torque Limiters Modified: Unlocks full torque curve for aggressive acceleration
Perfect for RS1s running aftermarket intakes, exhausts, or turbo modifications.
Fitment Information
Vehicle Compatibility:
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Polaris RZR RS1 (All Years)
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ECU Type: Bosch ME17.9.74
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Note: This ECU flash is for race-use only. It is not legal for street, recreational, or highway use. A signed Vehicle Compliance Waiver is required for purchase.
Installation Options
Two convenient tuning methods available:
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OBDII Flash via Frieling iFlash Tool (Windows PC required):
Flash your RS1 at home and easily switch between stock and tuned maps. -
Bench Flash Service:
Send us your ECU and we'll tune it in-house, test it, and send it back ready to install.
Pro Tip: Adjust your wastegate rod for optimal boost response and consistent power delivery.
Real Customer Reviews
Chad R. – ⭐⭐⭐⭐⭐
"Absolutely transformed my RS1. The throttle response and torque boost are next level! If you're serious about racing, this is a must-have mod."
Lena T. – ⭐⭐⭐⭐⭐
"Had it bench flashed and returned within 3 days. Great support and my RS1 pulls harder than ever. Highly recommend."
Contact & Support
Have questions about installation, tuning, or compatibility? Our team is here to help.
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Email: sales@sidebysidesports.com
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Phone: 760-746-0600
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Website: www.sidebysidesports.com
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