723261 Fits Twin Cam Softail 2011 Except Cvo Softail Convertible

The ThunderMax EFI system is arguably the most powerful self-tuning fuel management tool available for fuel-injected Softail models. This wide-band, closed-loop system is purpose-built to deliver uncompromised performance by automatically adjusting air-fuel ratios every time you ride. Whether you are running a stock setup or have added a performance exhaust and air cleaner, the AutoTune function continually optimizes the engine for maximum performance regardless of temperature or fuel quality. You will notice easier starting, a smoother idle, and crisp throttle response while eliminating that annoying exhaust popping. Please note that installation requires an exhaust with 18mm sensor bungs, like those found on 2007–2009 models, or a modified exhaust to accept the wide-band sensors.