84-16 Softail, (except 08 FXCW, 08-11 FXCWC, 13-14 FXSBSE, 14-15, 17 FXSB, 16 FLSTN, 16-17 FXSE)
Note: Only FX-Softail Models, 12-16 Require Oxigen Sensor Bung Reducer 670859
Manufacturer: BSL, Schirmerstr. 28, 4060 Linz - Leonding, Austria, https://www.bsl.at