harley exhaust on triumph America
straight through on america
2012 Triumph Speedmaster with BC Bomber exhaust
865cc Parallel twin 2012 Triumph Speedmaster. Idle set to ~1000-1200 RPM. 270 degree firing interval MODS: British Customs Bomber Exhaust, Air box removal kit with Dual K&N air filter, SAI (Secondary Air Injection) removal, O2 Sensor removal, NGK Iridium Spark plugs, Triumph Off Road fuel map.