How many O2 sensor does a 97 GST have ?

[MR2-GTS]

Hey guys I recently bought a Catback and a Downpipe, I notice they both have a O2 sensor bung. But I never new theres a O2 sesnor for a Downpipe area if anyone
I was thinking maybe the seller send me the wrong parts.

 

[HSK]

your dp - does it eliminate your o2housing?
there are 2 o2senors on our car.
one on o2housing and one with the cat.

 

[gs-t spidey]

The extra o2 bung is for a wide band 02 sensor so you can tune your car. It"s the way you tell what your air/fuel ratio is. If you don't have a wideband sensor just put a plug in it

 

[MR2-GTS]

the downpipe is suppose to elminate the cat so is this why it has a O2 bung ./?>

 

[MR2-GTS]

I know catback has a O2 and if Cat has a o2 and o2 housing has a O2 that will make it 3 o2 sesnor in our car?

 

[HSK]

it will help if you can post a pick of your down pipe and catback.. or whatever is that you just bought.

 

[MR2-GTS]

Megan Racing DP and Apexi N1 catback. The catback is already installed and I remeber I had to remove a O2 from the old exhaust and put it on the new catback.