O2 Sensor Bungs
Cruiser
Joined: Nov 2007
Posts: 212
Likes: 1
From: Florida Space Coast
You must have missed it, in their literature, they do mention that their O2 sensors are 18mm.
That being said, and as others have said, the bungs need close to the heads for the correct sensing to get the proper tuning.
Myself, I purchased V&H header pipes for 09 and earlier bikes so I could keep the stock ones for resale if I choose to go back to the stock HD computer and sell the bike. Good back-up if the aftermarket tuner goes south.
Your slip-ons will fit on them also.
You didn't mention which tuner you got (at least I didn't see it) but, it sounds like you have the T-Max. I have it and if you are somewhat computer literate, you can really get your bike to perform damned good. My bike runs great.
There are also lots of threads on here to help with setting it up and tuning it.
Good luck, and ride safe.
BigRed (Roger)
That being said, and as others have said, the bungs need close to the heads for the correct sensing to get the proper tuning.
Myself, I purchased V&H header pipes for 09 and earlier bikes so I could keep the stock ones for resale if I choose to go back to the stock HD computer and sell the bike. Good back-up if the aftermarket tuner goes south.
Your slip-ons will fit on them also.
You didn't mention which tuner you got (at least I didn't see it) but, it sounds like you have the T-Max. I have it and if you are somewhat computer literate, you can really get your bike to perform damned good. My bike runs great.
There are also lots of threads on here to help with setting it up and tuning it.
Good luck, and ride safe.
BigRed (Roger)
Elite HDF Member
Joined: Sep 2007
Posts: 4,928
Likes: 69
From: Near Myrtle Beach, SC
Here is where they are placed on the Jackpot header. Pretty much identical to where they were on the 09 headers. Be aware of the angles of the bungs and also the depth. You want that sensor in the flow just the right amount.
Last edited by Lowcountry Joe; Jul 12, 2013 at 09:51 AM.
Outstanding HDF Member
Joined: Jul 2007
Posts: 2,241
Likes: 7
From: Daytona, Fla.
Close to the exhaust port like this is the right way to do it, but a word of warning.... Measure & mark the pipes with the bungs & sensors while the pipes are on the bike. Angle makes a lot of difference, & you can get yourself in a spot where the sensors won't clear things enough to screw 'em in & out.
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Tourer
Joined: Sep 2012
Posts: 415
Likes: 1
From: Virginia Beach
so closer to the head the better? looks like ill be ordering new bungs. hopefully i can find a welding shop around here that will let me use there tig rig for few min or do it for me but id rather weld it myself.
online easiest place to find the bungs? or does auto parts stores carry them? i already found them online. but if i can get them local might be able to get it took care of this weekend
online easiest place to find the bungs? or does auto parts stores carry them? i already found them online. but if i can get them local might be able to get it took care of this weekend
Extreme HDF Member
Joined: Jun 2011
Posts: 10,216
Likes: 224
From: Glendale AZ
buy the 2009 if your even thinking of doing an AT in the future (it has the bigger bungs).That's the info that woulda came in handy when you bought the duals.... I don't know why they went with the smaller 02s after 2009? I gave up on the idea since the bike runs real good and I'm not going to go thru the BS of changing out the bung holes.....
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