dAHLer BMW Engine Performance Tuning - N55

Unlock the full potential of your BMW with the dAHLer Engine Performance Tuning Module for N55 engines—a precision-engineered solution that delivers increased horsepower, torque, and control while maintaining factory reliability and drivability. Designed for a wide range of BMW models equipped with the turbocharged inline-six N55 engine, this tuning module is the ultimate plug-and-play upgrade for enthusiasts seeking noticeable performance gains without compromise. Crafted in Germany and developed in Switzerland, the dAHLer tuning module integrates seamlessly with the factory ECU, delivering up to 9 horsepower gains to the wheels on a stock configuration. This tuning module works with BMW vehicles built before and after the production update of June 2022, and requires no DME removal or permanent modification. It connects directly via OEM-style plugs to the boost pressure sensors and camshaft position sensor, ensuring fault-free operation and simple installation in under 45 minutes. Des