Good thing I don’t have brothers because this is how that convo would go.
Hey can I borrow your wideband?
me: uh, no. it looks nice just where it is.
Tho I am pretty picky about how things are.
haha… my blood and sweat went into building their S13’s so they better rekonize! 
The ECU has compensations for things like weather. No I dont mean actual temperature. When it sees more air through the MAF it will add more fuel. There is obviously a limit to this but after tuning the car you will be fine to pull off the wideband.
thanks for the help guys!
I wouldn’t run a wideband in place of the stock 02 sensor unless you have that special sheild to prevent it from getting too hot.
If your going to run it inplace of the stock 02 sensor you should cap the turbo elbow bung and weld a new one in 12" or so away from the turbo.
^ I didn’t wanna weld a new bung anywhere, so I chose the one on the elbow.
I’ve also got a 3" Megan testpipe with a capped bung… would that be better (or too far)?
K