Hi has any one done the o2 sensor up grade mods on a 2007-2009 HD going from a narrow band sensor to the wide band o2 sensor ?? If so have any part numbers ?? and the cheapest place to buy them ?? thanks for any help

 

I dont think its that simple, you would need a complete system including a new ecm. There is a company who makes what you want, cant remember the name, but it isnt cheap.

 

night rider .com 450.00 set to 13.5 afr check it out.

 

There are "wide band (very expensive) and wide bands(expensive and what most sell for this application) and switches (what we have). They all work fine. Just have to be applied correctly.
The TTS uses the stock O2 sensors, which are really more like "on-off", with a small + -range to do a perfect job.
Using this tuner it looks at how much fuel the ECM puts in to get closed loop (14.6) across the board. It then uses this to figure out the VE tables for each cylinder. You can then, for the running tune, put in the numbers you want (here is where the cooler running comes in) the AF ratio table in every spot to be. If the ECM knows the VE for each spot and you put in what you want the AF ratio to be, it can figure that.
And it will do that.
Keep it simple.