I have a set of BNR stage 3 twins, a generic downpipe, and need an o2 sensor to pass emissions. The current downpipe I have does not fit an o2 sensor. The top of the o2 sensor doesnt clear the top of the y-pipe.

Any suggestions of setups that have worked for others?

 

Why not just plug the current bung and have another bung welded in a place that will work? Any exhaust shot should be able to do the work.

 

I am using an HKS.

 

+1