Thundermax Auto Tune

ThunderMax® with AutoTune is the industry’s first and only stand-alone Performance EFI Engine Management System developed specifically to meet the tuning needs of Throttle-By-Wire H-D® motorcycle owners. This highly advanced tuning system allows the user to support a wide range of performance upgrades with ease.

The all new ThunderMax® AutoTune TBW module includes all of the great performance enhancements that made the brand famous – with benefits you’ll notice immediately, including quicker throttle response, increased power and cooler operating temperatures.

Improve the performance and fuel mileage of your H-D® motorcycle without compromising over-all power output! Make adjustments to your EFI system without a master’s degree in electronics and computers!

The ThunderMax EFI System is purpose-built to deliver uncompromising performance, and you don’t have to be a rocket scientist to install it, program it or make adjustments. The ThunderMax with AutoTune is a Wide-Band, Closed-Loop system which means it continually and automatically adjusts your air-fuel ratios every time you ride, regardless of changes in ambient conditions. All you have to do is ride and enjoy!

The ThunderMax System can never be out grown… Change pipes, add cams, whatever! Just download a new map. ThunderMax software, firmware and map updates are accessible 24/7 with an internet connection.

The ThunderMax with AutoTune is made in the USA and backed by a 3-year warranty.

Exhaust Note: OE exhaust system supports 18mm ThunderMax oxygen sensors through 2009. 2010-2013 OE exhaust system uses 12mm bungs not compatible with 18mm sensors. Note that the models using 12mm sensors require exhaust systems compatible for 18mm bungs.