Hi guys, looking to add an exhaust system to my new 2013 Wide Glide. I am interested in an exhaust that has 18mm bungs and wondering what people have done with putting these types of exhaust on the newer Dynas with 12mm O2 sensors. Do the 12-18mm adapters really work properly? I have read where the adapters don't position the sensors in the right place. Or, maybe a tuner with O2 sensor bypass would work better, or one with 18mm O2 sensors like the Thundermax. I want to keep it relatively simple and not do a lot of changes if possible. Mostly looking to do exhaust, AC and tuner but may consider cams down the road....your thoughts and/or experiences?

 

I want to go in reverse of you I have 18mm sensors and an exhast with 12mm bungs.

 

Eastern Performance should be able to hook you up with what you need.

 

Why do you need 18mm sensors? Only reason to do it was if you were doing a monster motor build and putting wide band O2 sensors on.


Also, the position in the pipe os 12mm vs 18mm are slightly different places.


I just put Rush exhaust on and it has openings for both. Use what ya got, an plug the unused hole. A lot of aftermarket pipes give you the option of both sizes.


on my 06, which had no O2 sensors, we just drilled a hole and welded a bung into the exhaust. Can get them at any autoparts store if your ok with welding in your own. Not too hard at all if your good with a welder. I'm not so my buddy who is a welder did it in 5 minutes. Probably any muffler shop could do it for you too on the cheap.

 

I used 18mm to 12mm reducers on my Bassani pipes and had no problems whatsoever. Is it ideal, no but it works.

 

I would just recommend getting pipe that are made for your 12mm O2's, unless it's an insane, can't pass up, deal on an awesome pipe.

 

The adapters won't put the O2's in the right spot or the right depth. Either get the right pipe, or plug the 18 holes and have the 12mm holes installed at the proper spot by a good muffler shop or welder.

 

deleted

 

I added adapters to fit the 18mm holes to 12mm sensors on mine for only about $10.