Best Location for AF Sensor Bung, UPDATE: I got a SS muffler, what you all say now... Options

[913B]

I am going Microsquirt. My current muffler right before I tried cleaning the dust off the part label and it just incinerated is a Dansk 1.8 muffler from what the PO said.
I did have to reweld and rotate tip to exit correctly under the valence.
Maybe it was a bus muffler?

Anyone have any experience on where to place the AF sensor bung, too bad its not on the car to check for clearance/obstruction issues.

I was thinking of welding it on the tail pipe where the black circle I marked off.

I could buy a new exhaust with the bung attached, but this is my attempt at going Microsquirt without spending too much and work with what I have.

Anyone cut one up before and know of a good spot?

Thanks in advance.

Ted

[technicalninja]

And remember that Horiba is USED!
Parts for it may be "Hens Teeth"!

I've got what I believe is a Bursch copy that extends the primaries into a 4-way flange and has a single tube into a simple muffler. That tube is where I'm putting my sensor.

So, a good answer from me on where to place the O2 sensor bung is after the primaries have come together, before the muffler section, as far away from the heat as possible, and mounted in the roof of the pipe.

If I had 3K to spend on my 914s exhaust I'd just hit up Chris Foley as his systems look perfect to me, opposing cylinders are paired, clean collectors, and his O2 sensor bungs are in the right place. Nice stuff in my book.

That's where I'd put 3K...