Best location for O2 sensor bungs on a Burns exhaust

[strokerjlk]

ok...I see your edited post now...that makes sense too...but I already bought the eliminators this morning...so I might as well use them when the time comes to install the pipe.

i would rather not unpin them . you might end up having to run closed loop ,if ohio starts emission testing.

[hrdtail78]

I edited to add that you can unpin them.     If you target anything besides 14.6.  O2 sensor voltage is ignore by the ECM.  The plugs are just a resister to keep the ECM from throwing codes when the cal is targeting 14.6 and something else is running the show.  Like a piggy back tuner.

What would be slick is just weld a ss nut on the pipe where you want to use blocks.  2 advantages would be:  Not having a rivnut protruding, and if you likes to change things and get retuned.  You don't have a rivnut to deal with.  I have on occasion had problems removing a carboned up button head.  Rivnuts spin.

[strokerjlk]

What would be slick is just weld a ss nut on the pipe where you want to use blocks.  2 advantages would be:  Not having a rivnut protruding, and if you likes to change things and get retuned.  You don't have a rivnut to deal with.  I have on occasion had problems removing a carboned up button head.  Rivnuts spin.

as long as there is room to swing the manifold (herko block)
I dont recommend button heads .

[strokerjlk]

you can see where the front rivnut  is on this pic of Jays pipe


and you can see the rear in this pic. I hit them the best i could.