mdrshewrote

Hey all, so I just dented my 4-1 replica headers badly that there is a exhaust leak. I will be removing the aftermarket header and be installing my stock 96 GSR header.

Note to u all I'm running a chipped p28 and i'm sure I have a OBD1 dizzy and a Magnaflow high flow cat on stock B-pipe.

As of right now I have ONE O2 sensor on the end of my 4-1 header pipe but my stock 96 GSR header has no O2 bung hole on it what so ever. I was wondering where do I put my remaining O2 sensor once I install my stock 96 header?

BTW if you're wondering why I'm OBD1 its because the 96 GSR is in a OBD1 vehicle. I hope I provided enough info! Thanks.

B_Swapped93

so the header has NO bung anywhere ? you may need to weld one in they can be gotten for 10-20$ or less cut n weld.

mdrshewrote

No bung at all...I was thinking of maybe inside the Magnaflow cat but wouldn't that be obd2? I know 96 gsr are obd2 and normally have 2 sensors in the cat, correct me if im wrong...would it throw any codes cause it's a obd1 sensor in the cat instead of header?..

B_Swapped93

you could do that may need to extend the current wires to the 02 plug.

kyden

94-99 gsr's had the primary o2 sensor on the cat.

el crapitan

yea it should be at the collector. somewhere after the runners and before the cat

mdrshewrote

So bung one before the cat? Or inside the cat lol I would have to a shop tap a bung somewhere but not sure where...

HondaPartsHero

You'll be fine doing it before the cat in the collector