ECU Calibrations Tuner

The Screamin' Eagle Pro Street Tuner offers next-generation performance tuning with both wireless and wired options, maximizing performance while remaining 49-state emissions compliant. This tuner simplifies the management of engine operating parameters as performance modifications are made. Once installed, it allows for adjustment of key parameters or uploading of the latest ECM calibrations to match your bike’s current state-of-tune. You can start with upgrades like a high-flow air cleaner and Street Performance mufflers, then upload the corresponding calibration for optimal performance. As you add more Stage upgrades, simply upload the proper ECM calibration for the new hardware. The tuner facilitates Bluetooth® tuning via the Screamin’ Eagle Street Tuner mobile app, which provides free online access to the latest factory calibrations. It features a guided Smart Tune process for both new and experienced users, and includes Smart Tune Live, a dynamic method for tracking engine data to quickly modify Volumetric Efficiency tables (requires factory-installed O2 sensors). The app and desktop application allow for detailed review and adjustment of runtime data, including air/fuel ratio, O2 sensor readings, engine speed, temperature, RPM, vehicle speed, throttle position, and spark advance. Adjustments to Spark Advance, Throttle Progressivity (on select models), and Volumetric Efficiency are possible, requiring the desktop application and a Y-Cable for specific calibration adjustments. This tuner fits '21-later Touring, Trike, and Softail models. It does not fit California models; '21-later California models require P/N 41001166A instead. The mobile app supports iOS version 15 and newer, and Android version 11 and newer. A Tuner Cable Kit (P/N 41001142) is sold separately for computer connections in areas with poor Bluetooth connectivity or for detailed calibration adjustments. The Pro Street Tuner does not impact your Harley-Davidson® factory warranty coverage and is 49-State U.S. EPA compliant, but not compliant for sale or use in California on pollution-controlled motor vehicles.