Stick with pipes that will fit your bike without changing the O2 sensors, the bungs, their connectors, or their positions in the exhaust.

 

None of the stock sensors are wide band, all the stock HD sensors are narrow band. They only make wide band sensors in 18mm size, so if you're going to use any type of autotune you will need a pipe with 18mm bungs. If you're running a PCV without AT you can remove the sensors & replace with 18mm plugs.

 

in 10 the hot mod was replacing the cat head pipe with 09 take offs,as the aftermarket head pipes were a little slow in coming,if u run a 09 pipe u have 3 options add new bungs,adapt new sensors to old bungs or use a power commander and bypass the 02 sensors.

 

Beginning in 2010 HD Touring models were equiped with heated narrow band O2 sensors. They are smaller and operate quite different than the olderd ones. They are NOT interchangeable. The tuning systems like the SEPST and TTS will work with either.