Where to weld the bung?

dsp300c · 09-07-2009, 01:31 PM

I am about to buy an NGK or FJO wideband but not sure which one to go with yet. Still researching. Once I get my wideband where is the best place to weld the bung? Here is the link to LG headers and midpipe I have. I see the O2 bung at the collector. Do I put wideband bung before or after the O2? Pass or driver side? Any help would be appreciated.

http://www.lgmotorsports.com/catalog...oducts_id=1515

ShinodaVette · 09-07-2009, 02:37 PM

Driver's side is usually recommended but you can do either side. My Kooks x-pipe came with the WB O2 bung pre-welded in but they put it in the passenger side before the cats but after the front O2s since they are actually in the headers instead of the x-pipe. Seems to work fine in this location for my NGK AFX wideband.

09C6Coupe · 09-07-2009, 03:05 PM

Welding the bung is hazardous to your health.

Drivers side 6" before the cats 2 o'clock position to preven it from retaining water.

dsp300c · 09-07-2009, 04:36 PM

i don't have cats so how far after the o2 bung on the driver side should i put it? in the pic it looks i can do it between the o2 and clamp or right after the clamp

09C6Coupe · 09-07-2009, 05:34 PM

I would do it just before the clamps and make sure it has a clean stream of exhaust hitting it that isn't interupted by the o2 sensor. Sorry, I didn't notice that there were no cats in the pic.