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Old 04-19-2002, 12:43 PM   #1
Scooby Newbie
Member#: 7507
Join Date: Jun 2001
Location: Windsor, Ontario
2002 WRX Wagon

Default Where do I install 02 sensor for A/F gauge?

I have a Greddy A/F gauge/kit that comes with its own 02 sensor. I'm just wondering where the best place is to get the bung installed. I have the Brullen equal length headers, should I pick a certain collector or just install it where they all come together.

I know I have to put it before the cat but is it important where before the cat?

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Old 04-19-2002, 12:48 PM   #2
Scooby Specialist
Member#: 745
Join Date: Jan 2000
Location: Royal Oak, MI
2004 STi
Java Black Pearl


I would put it before the cat on Cylinder #3 (passenger side bank). Its the cylinder that runs the most lean, so you're gonna want to keep an eye on that one. I heard that if you put a sniffer AFTER the cat.. you don't get an accurate reading.

Dont be a retard like me and make the bung so that the o2 sensor is in harm's way. Mine is sort of sticking out. Thank god I haven't hit anything yet.

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