DAYTONA
DAYTONA TWIN TEC TWIN TUNER II DYNA/SOFTAIL CAN 16201
      Up for sale is  TWIN TEC TWIN TUNER II DYNA/SOFTAIL CAN . The vendor part number is  16201 . Read title carefully to know what you are getting. Catalog description… 
  The Twin Tuner II has all of the features of the Twin Tuner and also allows retarding of the spark timing up to 10° to help prevent pre-ignition knocking. The user interface consists of up/down pushbuttons and a bright daylight readable LED display to select and change the fuel trim and spark retard in the RPM and throttle position ranges required by most applications.