FastUTV aRacer Stand Alone ECU & Tuning Package
Transform the 2018-2022 Polaris RZR RS1 with a complete aRacer RC Super X PRO stand alone ECU and FastUTV engineered tuning package. This plug-and-play engine-management solution replaces the factory ECU strategy and arrives configured for the selected vehicle setup and fuel.
Choose Your RS1 ECU Package
| Package |
Retail Price |
Included Tuning |
Application |
| Naturally Aspirated Package |
$2,369 |
All three included: Stage 1 91-octane, Stage 2 100-octane, and Stage 3 110-octane tuning |
Naturally aspirated 999cc RS1 engine with the supporting modifications listed for each stage |
| Boost Tuning Package |
$2,869 |
Up to three maps: one each for 91, 100, and 110-octane fuel |
Turbocharged or supercharged RS1 builds; forced-induction and fuel-system hardware are not included |
Naturally Aspirated Performance Stages - $2,369
The Naturally Aspirated Package includes the aRacer stand alone ECU and all three FastUTV fuel-specific calibrations shown below. The package price remains $2,369.
| Stage |
Fuel |
Target Output |
Required Modifications |
| Stage 1 |
91 octane gasoline |
96 WHP |
No additional performance modifications required. |
| Stage 2 |
100 octane gasoline |
103 WHP |
Full aftermarket exhaust system required. |
| Stage 3 |
110 octane gasoline |
110 WHP |
Full aftermarket exhaust and intake systems required. |
Boost Tuning Package - $2,869
Select Boost Tuning for a turbocharged or supercharged RS1 application. The $500 tuning upgrade covers up to three custom fuel maps, one each for 91, 100, and 110-octane gasoline.
- aRacer RC Super X PRO full replacement ECU
- FastUTV boost calibration matched to the customer's forced-induction system and current modifications
- Up to three fuel-specific maps: 91 octane, 100 octane, and 110 octane
- Vehicle and modification review before calibration
Boost Hardware Note: Turbocharger, supercharger, injectors, fuel-system components, sensors, exhaust, intake, intercooling, and dyno time are not included unless specifically stated. Final tuning scope and power limits depend on the supplied hardware, fuel delivery, engine condition, and requested use.
Wheel-horsepower figures are FastUTV performance targets. Actual output can vary with vehicle condition, dyno, fuel quality, elevation, weather, supporting modifications, and configuration.
Plug-and-Play Control
- Complete stand alone ECU replacement for the supported RS1 application
- Fuel and ignition strategies configured for the selected package
- Improved control for performance modifications and race-focused vehicle setups
- FastUTV calibration support based on the submitted vehicle information
Fitment
- Polaris RZR RS1 - 2018
- Polaris RZR RS1 - 2019
- Polaris RZR RS1 - 2020
- Polaris RZR RS1 - 2021
- Polaris RZR RS1 - 2022
Fitment Note: Exact model year, trim, ECU connector, wiring configuration, fuel system, and current modifications must be confirmed before ordering.
Before Ordering
FastUTV will review the exact year, model, current engine modifications, intake, exhaust, fuel system, naturally aspirated or boosted configuration, selected tuning package, and intended fuels before calibration. Customers ordering Boost Tuning must provide complete turbocharger or supercharger system details.
Hardware Information
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ECU: aRacer RC Super X PRO stand alone engine control unit
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Package Brand: FastUTV
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Vehicle Application: 2018-2022 Polaris RZR RS1
Competition Use Notice: Intended for closed-course competition, off-road, testing, research, or development use where applicable. Customer is responsible for compliance with all applicable laws and regulations.
California Proposition 65 Warning
WARNING: This product can expose you to chemicals including lead, which is known to the State of California to cause cancer and birth defects or other reproductive harm. For more information, visit www.P65Warnings.ca.gov.
