Select a pump-gas tune with factory injectors or a matched big-injector calibration for higher octane gasoline or E85. Big-injector stages require an upgraded wastegate actuator.
Every package includes your selected FastUTV calibration, RTD4 tuning interface, correct Can-Am adapter cable and required licensing.
Package choices
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$799: tuning, RTD4, cable and licensing with the stage’s required injectors already fitted.
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$1,499: the same package plus three new, matched 1000cc injectors for a big-injector stage.
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New wastegate: +$299 when selected for a big-injector stage. Reusing a suitable installed actuator adds no parts charge.
Only combinations matching the selected stage are offered. “Installed” means that the correct supporting parts are already on your vehicle. Parts marked “add” or “supply” are included in the displayed total.
Vehicle fitment
2018–2020 factory 172 HP Maverick X3 Turbo R models, all trims including MAX four-seat versions. Retains the factory turbo, fuel pump and intercooler.
Choose by model year and original factory horsepower. FastUTV matches the delivered file to your ECU, injector specification, fuel and installed hardware.
Stage and fuel guide
The crank HP and wheel HP below are EVP’s published reference figures for these configurations, checked October 6, 2026. They describe the guide’s test setups; your result depends on fuel, build and test conditions.
| Stage |
Required fuel |
Crank HP |
Wheel HP |
Required equipment |
| Stage 1 |
91 AKI gasoline |
192 |
157 |
Stock injectors |
| Stage 2R |
91 AKI gasoline |
196 |
161 |
Stock injectors |
| Stage 3R |
91 AKI gasoline |
200 |
164 |
Stock injectors |
| Stage 3R-93 |
93 AKI gasoline |
205 |
168 |
Stock injectors |
| Stage 3RWi |
93 AKI gasoline |
205 |
168 |
1000cc × 3; upgraded wastegate |
| Stage 4RWi |
95 AKI gasoline |
215 |
176 |
1000cc × 3; upgraded wastegate |
| Stage 4x100 |
100 AKI gasoline |
225 |
184 |
1000cc × 3; upgraded wastegate |
| Stage 5x85 |
E85 only |
235 |
193 |
1000cc × 3; upgraded wastegate |
Octane ratings are US AKI. Select one fuel-specific calibration. E85 stages require fuel matched to the calibration’s ethanol content; gasoline and E85 files are separate. These are fixed-fuel stages.
Supporting hardware and setup
Keep the factory Turbo R pump and intercooler. Stock-injector stages use a suitable existing actuator adjusted for the selected file. Every big-injector stage needs a matched upgraded wastegate: choose an already-installed unit or add a new one.
Set wastegate pressure and spark-plug gap to the delivered file’s instructions. Correct clutch setup is recommended to make use of the selected tune. Exhaust, clutch parts and other separately quoted build components are additional to the selected package.
Multi-map controls and upgraded-turbo builds require a separate build review and quote. Contact FastUTV with your hardware and fuel details.
WSRD charge tube and blow-off valve
Select the WSRD silicone lower charge tube, $189, with an optional WSRD blow-off valve for $249 more ($438 for the tube and valve selection). Choose the existing intercooled-model configuration. This optional hardware is purchased separately from tuning.
Choose color, upper-tube and valve options on the WSRD product page. Its current availability and any backorder terms apply.
Shop all tuning · X3 ECU and tuning packages · X3 performance parts
Technical guide: EVP stage chart for this factory-power family. FastUTV package pricing and RTD4 contents are shown above.
