Description
The STILLEN TruControl Inline Power Module for the 2021–2025 Toyota Supra 3.0T (A91) is a plug-and-play performance upgrade engineered to unlock the full potential of the B58 turbocharged engine. Designed specifically for newer A91 Supra models, this inline tuning module increases boost pressure and optimizes key engine parameters without modifying the factory ECU.
The TruControl by STILLEN installs directly into the factory wiring harness with no cutting, splicing, or soldering required. Installation takes approximately 15 minutes, making it one of the fastest and most accessible horsepower upgrades available for the Supra 3.0T. Once installed, the system delivers strong horsepower and torque gains across the entire RPM range, with the most significant improvements near the top end.
Dyno testing shows gains of up to +68 flywheel horsepower and +66 flywheel ft-lbs of torque, increasing peak output to nearly 450 flywheel horsepower. Torque output increases from 363.2 ft-lbs to 428 ft-lbs at the flywheel, delivering dramatically improved acceleration and throttle response.
The TruControl system features Bluetooth connectivity and a free smartphone app, allowing drivers to select, adjust, and reset tuning calibrations on demand. The module comes preloaded with up to seven selectable tuning maps, ranging from Eco to Race modes, allowing performance to be tailored to individual driving preferences.
Custom over-the-air tuning files are available when paired with supporting STILLEN performance upgrades such as exhaust or intake components. The system is fully removable, allowing the vehicle to be returned to stock prior to dealership visits to help maintain factory warranty coverage.
A 14-day satisfaction guarantee allows customers to test the TruControl by STILLEN risk-free in their own vehicle.
Vehicle Fitment
Fits the following vehicles:
- 2021–2025 Toyota Supra
- 3.0T Inline 6-cylinder engine
- B58 engine
- A91 chassis
Does NOT fit:
- Toyota Supra 2.0 models
- Vehicles registered in California
Verify model year and engine before purchase.
Performance Gains (DYNO RESULTS)
- Factory rated output: 382 flywheel horsepower
- Baseline dyno output: 368.1 flywheel horsepower
- Tuned output: 436.8 flywheel horsepower
- Horsepower gain: Just under +70 flywheel horsepower
- Stock torque output: 363.2 flywheel ft-lbs
- Tuned torque output: 428 flywheel ft-lbs
- Torque gain: Over +65 flywheel ft-lbs
Results may vary depending on vehicle condition, fuel quality, and supporting modifications.
Key Features and Benefits
- STILLEN TruControl inline power tuning module
- Designed specifically for the A91 Toyota Supra 3.0T
- Increases boost pressure without factory ECU modification
- Up to +68 flywheel horsepower gain
- Up to +66 flywheel ft-lbs torque gain
- Plug-and-play installation
- No wiring, cutting, or specialty tools required
- Bluetooth connectivity with smartphone integration
- Free tuning app for calibration control
- Preloaded with up to seven selectable tuning maps
- Over-the-air custom tuning support for aftermarket parts
- Fully removable to help maintain factory warranty
- 14-day satisfaction guarantee
- Not legal for sale or use in California
Ease of Use
- Calibration selection available with engine on or key on
- Plus and minus controls allow instant map changes
- Smartphone app manages and resets all calibrations
- Designed for daily driving and high-performance street use
