Now available for 2009 Touring. With twice the internal volume of standard slip-on mufflers and technology you won’t find anywhere else. - Visit Product Page - Visit The Harley Section
Your fuel injected ride is equipped with an ECU (electronic control unit) that is programmed to deliver fuel to the motor based on an air/fuel ratio for a stock air filter and stock exhaust system.
While the ECU can self-adjust for environmental factors such as temperature and altitude, it can't adjust for mechanical changes like adding performance parts. When you install a performance exhaust system, your airflow changes, so you need a fuel management system that adjusts your air/fuel ratio to match the changes. That fuel management system is Fuelpak. - Visit Product Page