ezdaar

iTrader: (1)

He means the bung.. They are way to thick and the nose of the Sensor does not protrude far enough into the exhaust stream.

kr1s

ohh okay okay cool ill look into that.
But i don't think i got a bung with my kit

Vortec350ss

iTrader: (20)

What about with a catless header kit... since my rear o2's are turned off I was planning on just using one of those bungs... too far away to give a good reading?

kr1s

I wanna see yes to far if you're not FI
This is based on what i've been told so far
Because that was my plan, run stock manifolds, take off the cats, have a straight pipe and use a existing O2 bung, but now i'm gonna mount it on the drivers side collector

AKlowriderZ71

iTrader: (22)

In my opinion, still too far back.