Fit all 07>Later H-D those with two wire NBO2 Bosch Sensor(except 10>later Touring, 12> Dyna/Softail, 14> Sportster), including 2006 Dyna. All H-D using the OEM 2-wire Bosch O2 sensor.
O2 Eliminators disable the oxygen sensors and force the ECM into open loop mode. Some engines will run smoother this way. The AFR will be the 'fuel map' fuel mixture plus any learned enrichment from the Adaptive Fuel Value. For normal riding on your stock, Stage 1, Stage 2 and many SERT/SEST tuned bikes, this is a 14.6:1 fuel mixture.
2010> later Touring, 2012> Dyna/Softail, 2014>Sportster use 4-wire based O2 Eliminator.
For Off Road Use Only