Can-Am Maverick X3 ECU tuning
Systems for 2021 and newer Turbo RR models, the 2023 and newer 135 HP non-intercooled X3, and custom big-turbo builds.
Fast UTV / aRacer
UTV ECU Performance Tuning
Stand-alone engine management and vehicle-specific tuning for Polaris RZR and Can-Am Maverick X3.
Fast UTV engineers plug-and-play aRacer stand-alone ECU tuning systems for Polaris RZR and Can-Am Maverick X3 vehicles. These packages combine vehicle-specific engine management hardware with fuel and performance calibrations selected for the way your UTV is built and driven.
Replace the locked factory ECU
The 2022 and newer Polaris RZR Pro R and 2021 and newer Can-Am Maverick X3 use a locked Bosch MG1 ECU from the factory. A Fast UTV aRacer package removes that factory ECU from the tuning process, eliminating traditional unlock delays and unlock licensing fees. The complete system is plug-and-play, installs in minutes, and arrives turn-key with the selected Fast UTV calibration.
Shop by vehicle
Polaris RZR Pro R ECU tuning
Stand-alone ECU packages for 2022 and newer Pro R models with staged fuel tuning, boost tuning, camshaft packages, and custom big-turbo support.
Polaris RZR Pro XP and Turbo R tuning
Stock-injector and 1300cc big-injector packages for all Pro XP and Turbo R model years.
Polaris RZR Turbo S ECU tuning
Vehicle-specific stock- and big-injector tuning for 2016-2021 RZR Turbo S models.
Polaris RZR 170 ECU tuning
Plug-and-play tuning for 2015 and newer RZR 170 models, with three included calibration choices.
All Fast UTV aRacer ECU systems
Compare every staged, big-injector, and custom big-turbo Fast UTV aRacer package in one place.
Choose the right performance package
Stock-injector tuning
Best for stock or lightly modified vehicles. Each product page shows the included fuel strategies, supported modifications, and expected wheel-horsepower targets for that application.
Big-injector tuning
Designed for higher fuel demand. Package listings identify the included injectors, fuel-pump or wastegate hardware, fuel requirements, and all calibrations supplied with the ECU.
Custom big-turbo tuning
Built around your existing turbo system and requested power limit. Custom packages include a base fuel strategy, live tuning, and remote-access tuning support; dyno time and additional sensors or fuel-system hardware are separate unless listed.
How ordering works
- Select the ECU package for your exact vehicle platform.
- Choose the available stock-injector, big-injector, boost, or custom package.
- Enter the vehicle year, make, model, and current modifications on the product page.
- Fast UTV prepares the ECU and included calibrations for a turn-key installation.
Continental U.S. ECU-system orders qualify for the configured $25 flat shipping rate. Local pickup at Fast UTV is also available.
Frequently asked ECU tuning questions
Does the aRacer ECU require a factory ECU unlock?
No for the stand-alone applications listed here. The aRacer system replaces the factory ECU in the engine-management process, so a traditional factory ECU unlock and unlock license are not required.
Can a stock Can-Am X3 run E85?
The applicable product page identifies the specific no-modification E85 calibration. For example, the Fast UTV Stage 0 package for the supported X3 Turbo RR and the Stage 2 package for the 135 HP non-intercooled X3 are designed for the listed stock-hardware application.
Are all tunes included with every package?
Included calibrations vary by vehicle and hardware package. Each product page clearly identifies the tunes included with the selected ECU system and prevents incompatible stage combinations.
