Packard Performance Polaris Xpedition MT Supercharger kit
Turn your Polaris Xpedition into the machine it should’ve been from the factory. This custom supercharger kit is built around a Rotrex centrifugal supercharger, delivering a clean, reliable 5 PSI of boost and producing approximately 130 wheel horsepower (WHP) — up from 85 WHP stock — all while running 91-octane pump gas. That’s a serious bump in power while keeping drivability smooth, predictable, and trail-ready.
Performance: The Rotrex system builds boost progressively, giving you controllable power whether you're crawling tight trails or wide-open in the desert.
- ~130 WHP at 5 PSI
- 175 HP at the crank
- Strong midrange torque
- Smooth, linear boost curve
- OEM-like drivability with significantly more power
Features:
- Conservative 5 PSI configuration
- Designed for stock internal engines
- Proper belt alignment and bracket rigidity
- 91-octane pump gas compatible
Specifications:
- +45 wheel horsepower
- +61 crank horsepower
- ~53% increase at the wheels
You’re not just adding a little pep — you’re transforming the machine:
- Faster acceleration
- Stronger midrange pull
- Higher top-end speed
- More responsive throttle
The beauty of the Rotrex centrifugal supercharger is how it delivers that power — smooth, progressive boost that feels OEM but hits substantially harder.
| Setup | Wheel HP (WHP) | Crank HP |
|---|---|---|
| Stock | ~85 WHP | 114 HP |
| Supercharged (5 PSI) | ~130 WHP | 175 HP |
| Gain | +45 WHP | +61 HP |
Kit Includes:
- Rotrex centrifugal supercharger unit
- Precision-engineered mounting bracket system
- Drive pulley & belt setup
- Charge piping
- Base tuning configuration (5 PSI on 91 octane)
- Bosch 1000cc injectors
- 3-bar MAP sensor
- Secondary clutch helix and spring
- All necessary installation hardware
Kit Options:
1. Builder Kit: For experienced builders or shops handling their own tuning
Includes:
- Rotrex supercharger system
- Brackets, pulleys, belt system
- Charge piping
- Installation hardware
- No tuning included
2. Base Kit: For customers who need tuning support but already have hardware
Includes:
- ECU unlock service
- Base calibration for 5 PSI
Does NOT Include:
- Hardware
- HP Tuners credits
Ideal if you already have the supercharger system and need proper setup and calibration.
3. Complete Kit: The full plug-and-play solution
Includes:
- Rotrex supercharger system
- All mounting hardware
- ECU unlock service
- Base calibration
- Flashing device
Everything needed to get up and running with the 5 PSI / 130 WHP setup.
Tuning Information:
- Tuning is performed using HP Tuners software.
- Your stock ECU must be shipped to HP Tuners to be professionally unlocked before calibration can be completed.
- Once unlocked, we provide the proper 5 PSI base calibration.
Tuning & Operating Specifications:
Installer Must Verify:
- Maximum boost level (varies with elevation)
- Intercooler fan operation
- Clutching calibrated to target 8,200–8,400 RPM at peak boost
- Air-Fuel Ratio (AFR) under load
Installation Requirements & Notes:
- Professional installation is strongly recommended
- Refer to the Polaris service manual for removal and installation of all OEM components
- Supplied instructions cover supercharger components only
