Im getting a down pipe next week. Im going to drop it off to have an 02 bung welded on it so I can hook it up to my friends Wideband 02 sensor. But where is the best place to have the bung welded onto the DP? And can I do this on a Stainless steal DP? I have intake and exhaust and hopefully the DP wont put my A/F ratio too lean at WOT before I get a PFC later this year.

 

I have a wideband bung, right where it starts to curve towards the cat.

 

my WB bung is twords the end of the DP.

 

Any reasons for your bung positioning?
I was thinking towards the middle away from a bend (of course)
thanks for the insight.
What mods do you guys have?

 

I think you want it as close to the cat. as possible. I believe Wade told be that.

Mods- Pulleys, cold air intake, DP, cat back, PFS PMS.

 

I posted my sensor location on this thread. Worked out great for me. Check it out and PM me if you have q's or want more pics.

 

Put it at the very end of the downpipe, a few inches away from the cat (or midpipe) so the exhaust is a little cooler to extend the life of the sensor.